1575451666152 has 288 divisors, whose sum is σ = 5392721767680. Its totient is φ = 406662197760.

The previous prime is 1575451666111. The next prime is 1575451666169. The reversal of 1575451666152 is 2516661545751.

It is a happy number.

It is a super-2 number, since 2×1575451666152² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3806502 + ... + 4200042.

It is an arithmetic number, because the mean of its divisors is an integer number (18724728360).

Almost surely, 2^{1575451666152} is an apocalyptic number.

1575451666152 is a gapful number since it is divisible by the number (12) 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 1575451666152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2696360883840).

1575451666152 is an abundant number, since it is smaller than the sum of its proper divisors (3817270101528).

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

1575451666152 is a wasteful number, since it uses less digits than its factorization.

1575451666152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393633 (or 393613 counting only the distinct ones).

The product of its digits is 7560000, while the sum is 54.

The spelling of 1575451666152 in words is "one trillion, five hundred seventy-five billion, four hundred fifty-one million, six hundred sixty-six thousand, one hundred fifty-two".