23015558100 has 36 divisors (see below), whose sum is σ = 66591682304. Its totient is φ = 6137482080.

The previous prime is 23015558087. The next prime is 23015558101. The reversal of 23015558100 is 185551032.

It is a super-2 number, since 2×23015558100² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23015558101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38358964 + ... + 38359563.

Almost surely, 2^23015558100 is an apocalyptic number.

23015558100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23015558100 is an abundant number, since it is smaller than the sum of its proper divisors (43576124204).

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

23015558100 is a wasteful number, since it uses less digits than its factorization.

23015558100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76718544 (or 76718537 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 30.

The spelling of 23015558100 in words is "twenty-three billion, fifteen million, five hundred fifty-eight thousand, one hundred".