23436543156 has 48 divisors (see below), whose sum is σ = 58913159424. Its totient is φ = 7208631936.

The previous prime is 23436543133. The next prime is 23436543199. The reversal of 23436543156 is 65134563432.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 429301 + ... + 480803.

It is an arithmetic number, because the mean of its divisors is an integer number (1227357488).

Almost surely, 2^23436543156 is an apocalyptic number.

23436543156 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

23436543156 is an abundant number, since it is smaller than the sum of its proper divisors (35476616268).

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

23436543156 is a wasteful number, since it uses less digits than its factorization.

23436543156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54440 (or 54438 counting only the distinct ones).

The product of its digits is 777600, while the sum is 42.

The spelling of 23436543156 in words is "twenty-three billion, four hundred thirty-six million, five hundred forty-three thousand, one hundred fifty-six".