1516975423488 has 660 divisors, whose sum is σ = 5293899708075. Its totient is φ = 433421549568.

The previous prime is 1516975423471. The next prime is 1516975423489. The reversal of 1516975423488 is 8843245796151.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

1516975423488 is a `hidden beast` number, since 1 + 5 + 1 + 6 + 9 + 7 + 542 + 3 + 4 + 88 = 666.

It can be written as a sum of positive squares in only one way, i.e., 758487711744 + 758487711744 = 870912^2 + 870912^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=870912.

It is a super-2 number, since 2×1516975423488² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

Its product of digits (58060800) is a multiple of the sum of its prime divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1516975423489) by changing a digit.

It is a polite number, since it can be written in 32 ways as a sum of consecutive naturals, for example, 216710774781 + ... + 216710774787.

Almost surely, 2^{1516975423488} is an apocalyptic number.

1516975423488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1516975423488

1516975423488 is an abundant number, since it is smaller than the sum of its proper divisors (3776924284587).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1516975423488 is an frugal number, since it uses more digits than its factorization.

1516975423488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 12 counting only the distinct ones).

The product of its digits is 58060800, while the sum is 63.

The spelling of 1516975423488 in words is "one trillion, five hundred sixteen billion, nine hundred seventy-five million, four hundred twenty-three thousand, four hundred eighty-eight".