23155436100 has 36 divisors (see below), whose sum is σ = 66996395984. Its totient is φ = 6174782880.

The previous prime is 23155436063. The next prime is 23155436167. The reversal of 23155436100 is 163455132.

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38592094 + ... + 38592693.

Almost surely, 2^23155436100 is an apocalyptic number.

23155436100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23155436100 is an abundant number, since it is smaller than the sum of its proper divisors (43840959884).

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

23155436100 is a wasteful number, since it uses less digits than its factorization.

23155436100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77184804 (or 77184797 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The spelling of 23155436100 in words is "twenty-three billion, one hundred fifty-five million, four hundred thirty-six thousand, one hundred".