23556711040 has 32 divisors (see below), whose sum is σ = 56315263860. Its totient is φ = 9422684160.

The previous prime is 23556711037. The next prime is 23556711071. The reversal of 23556711040 is 4011765532.

It can be written as a sum of positive squares in 2 ways, for example, as 23218445376 + 338265664 = 152376^2 + 18392^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 23556710987 and 23556711005.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18403041 + ... + 18404320.

Almost surely, 2^23556711040 is an apocalyptic number.

23556711040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23556711040 is an abundant number, since it is smaller than the sum of its proper divisors (32758552820).

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

23556711040 is an equidigital number, since it uses as much as digits as its factorization.

23556711040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36807380 (or 36807368 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The spelling of 23556711040 in words is "twenty-three billion, five hundred fifty-six million, seven hundred eleven thousand, forty".