15855231336 has 32 divisors (see below), whose sum is σ = 45300661440. Its totient is φ = 4530066048.

The previous prime is 15855231323. The next prime is 15855231383. The reversal of 15855231336 is 63313255851.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47188021 + ... + 47188356.

It is an arithmetic number, because the mean of its divisors is an integer number (1415645670).

Almost surely, 2^15855231336 is an apocalyptic number.

It is an amenable number.

15855231336 is an abundant number, since it is smaller than the sum of its proper divisors (29445430104).

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

15855231336 is a wasteful number, since it uses less digits than its factorization.

15855231336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94376393 (or 94376389 counting only the distinct ones).

The product of its digits is 324000, while the sum is 42.

The spelling of 15855231336 in words is "fifteen billion, eight hundred fifty-five million, two hundred thirty-one thousand, three hundred thirty-six".