23016164621 has 8 divisors (see below), whose sum is σ = 24259069080. Its totient is φ = 21803209792.

The previous prime is 23016164593. The next prime is 23016164651. The reversal of 23016164621 is 12646161032.

It can be written as a sum of positive squares in 4 ways, for example, as 2219352100 + 20796812521 = 47110^2 + 144211^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23016164621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23016164651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7485830 + ... + 7488903.

It is an arithmetic number, because the mean of its divisors is an integer number (3032383635).

Almost surely, 2^23016164621 is an apocalyptic number.

It is an amenable number.

23016164621 is a deficient number, since it is larger than the sum of its proper divisors (1242904459).

23016164621 is a wasteful number, since it uses less digits than its factorization.

23016164621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14974815.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 23016164621 in words is "twenty-three billion, sixteen million, one hundred sixty-four thousand, six hundred twenty-one".