1616545488 has 20 divisors (see below), whose sum is σ = 4176075968. Its totient is φ = 538848480.

The previous prime is 1616545481. The next prime is 1616545523. The reversal of 1616545488 is 8845456161.

It is a super-2 number, since 2×1616545488² = 5226438629546316288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 33678031 = 1616545488 / (1 + 6 + 1 + 6 + 5 + 4 + 5 + 4 + 8 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616545481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16838968 + ... + 16839063.

Almost surely, 2^1616545488 is an apocalyptic number.

It is an amenable number.

1616545488 is an abundant number, since it is smaller than the sum of its proper divisors (2559530480).

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

1616545488 is a wasteful number, since it uses less digits than its factorization.

1616545488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33678042 (or 33678036 counting only the distinct ones).

The product of its digits is 921600, while the sum is 48.

The square root of 1616545488 is about 40206.2866726088. The cubic root of 1616545488 is about 1173.6248860825.

The spelling of 1616545488 in words is "one billion, six hundred sixteen million, five hundred forty-five thousand, four hundred eighty-eight".