15857323152 has 80 divisors (see below), whose sum is σ = 44847153408. Its totient is φ = 4788224640.

The previous prime is 15857323129. The next prime is 15857323171. The reversal of 15857323152 is 25132375851.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96363 + ... + 202485.

Almost surely, 2^15857323152 is an apocalyptic number.

15857323152 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 15857323152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22423576704).

15857323152 is an abundant number, since it is smaller than the sum of its proper divisors (28989830256).

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

15857323152 is a wasteful number, since it uses less digits than its factorization.

15857323152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106428 (or 106422 counting only the distinct ones).

The product of its digits is 252000, while the sum is 42.

The spelling of 15857323152 in words is "fifteen billion, eight hundred fifty-seven million, three hundred twenty-three thousand, one hundred fifty-two".