23385138056 has 16 divisors (see below), whose sum is σ = 50111010240. Its totient is φ = 10022202000.

The previous prime is 23385138053. The next prime is 23385138097. The reversal of 23385138056 is 65083158332.

It is a junction number, because it is equal to n+sod(n) for n = 23385137998 and 23385138016.

It is not an unprimeable number, because it can be changed into a prime (23385138053) 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, 208795820 + ... + 208795931.

It is an arithmetic number, because the mean of its divisors is an integer number (3131938140).

Almost surely, 2^23385138056 is an apocalyptic number.

It is an amenable number.

23385138056 is an abundant number, since it is smaller than the sum of its proper divisors (26725872184).

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

23385138056 is a wasteful number, since it uses less digits than its factorization.

23385138056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417591764 (or 417591760 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 23385138056 in words is "twenty-three billion, three hundred eighty-five million, one hundred thirty-eight thousand, fifty-six".