10156638870 has 64 divisors (see below), whose sum is σ = 30953571840. Its totient is φ = 2321517024.

The previous prime is 10156638827. The next prime is 10156638889. The reversal of 10156638870 is 7883665101.

10156638870 is a `hidden beast` number, since 1 + 0 + 1 + 5 + 6 + 638 + 8 + 7 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2685052 + ... + 2688831.

It is an arithmetic number, because the mean of its divisors is an integer number (483649560).

Almost surely, 2^10156638870 is an apocalyptic number.

10156638870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10156638870 is an abundant number, since it is smaller than the sum of its proper divisors (20796932970).

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

10156638870 is a wasteful number, since it uses less digits than its factorization.

10156638870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5373906 (or 5373900 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 10156638870 in words is "ten billion, one hundred fifty-six million, six hundred thirty-eight thousand, eight hundred seventy".