23210700666365 has 4 divisors (see below), whose sum is σ = 27852840799644. Its totient is φ = 18568560533088.

The previous prime is 23210700666353. The next prime is 23210700666367. The reversal of 23210700666365 is 56366600701232.

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 10540710249316 + 12669990417049 = 3246646^2 + 3559493^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23210700666365 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 (23210700666367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2321070066632 + ... + 2321070066641.

It is an arithmetic number, because the mean of its divisors is an integer number (6963210199911).

Almost surely, 2^{23210700666365} is an apocalyptic number.

It is an amenable number.

23210700666365 is a deficient number, since it is larger than the sum of its proper divisors (4642140133279).

23210700666365 is an equidigital number, since it uses as much as digits as its factorization.

23210700666365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4642140133278.

The product of its (nonzero) digits is 1632960, while the sum is 47.

The spelling of 23210700666365 in words is "twenty-three trillion, two hundred ten billion, seven hundred million, six hundred sixty-six thousand, three hundred sixty-five".