23021658072 has 48 divisors (see below), whose sum is σ = 71257514640. Its totient is φ = 6577616448.

The previous prime is 23021658053. The next prime is 23021658097. The reversal of 23021658072 is 27085612032.

23021658072 is a `hidden beast` number, since 2 + 3 + 0 + 2 + 1 + 6 + 580 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22838443 + ... + 22839450.

It is an arithmetic number, because the mean of its divisors is an integer number (1484531555).

Almost surely, 2^23021658072 is an apocalyptic number.

It is an amenable number.

23021658072 is an abundant number, since it is smaller than the sum of its proper divisors (48235856568).

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

23021658072 is a wasteful number, since it uses less digits than its factorization.

23021658072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45677912 (or 45677905 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 23021658072 in words is "twenty-three billion, twenty-one million, six hundred fifty-eight thousand, seventy-two".