16238391756 has 24 divisors (see below), whose sum is σ = 38264727984. Its totient is φ = 5359204800.

The previous prime is 16238391737. The next prime is 16238391787. The reversal of 16238391756 is 65719383261.

It is a junction number, because it is equal to n+sod(n) for n = 16238391699 and 16238391708.

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, 6697795 + ... + 6700218.

It is an arithmetic number, because the mean of its divisors is an integer number (1594363666).

Almost surely, 2^16238391756 is an apocalyptic number.

It is an amenable number.

16238391756 is an abundant number, since it is smaller than the sum of its proper divisors (22026336228).

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

16238391756 is a wasteful number, since it uses less digits than its factorization.

16238391756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13398121 (or 13398119 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 51.

The spelling of 16238391756 in words is "sixteen billion, two hundred thirty-eight million, three hundred ninety-one thousand, seven hundred fifty-six".