23163702546221 has 4 divisors (see below), whose sum is σ = 24526273284252. Its totient is φ = 21801131808192.

The previous prime is 23163702546209. The next prime is 23163702546241. The reversal of 23163702546221 is 12264520736132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11338776636100 + 11824925910121 = 3367310^2 + 3438739^2 .

It is a cyclic number.

It is not a de Polignac number, because 23163702546221 - 2¹⁸ = 23163702284077 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 (23163702546241) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 681285368990 + ... + 681285369023.

It is an arithmetic number, because the mean of its divisors is an integer number (6131568321063).

Almost surely, 2^{23163702546221} is an apocalyptic number.

It is an amenable number.

23163702546221 is a deficient number, since it is larger than the sum of its proper divisors (1362570738031).

23163702546221 is a wasteful number, since it uses less digits than its factorization.

23163702546221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362570738030.

The product of its (nonzero) digits is 725760, while the sum is 44.

The spelling of 23163702546221 in words is "twenty-three trillion, one hundred sixty-three billion, seven hundred two million, five hundred forty-six thousand, two hundred twenty-one".