23644236901156 has 27 divisors (see below), whose sum is σ = 41439234176977. Its totient is φ = 11804482039760.

The previous prime is 23644236901133. The next prime is 23644236901163. The reversal of 23644236901156 is 65110963244632.

The square root of 23644236901156 is 4862534.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 6996204861156 + 16648032040000 = 2645034^2 + 4080200^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8626133946 + ... + 8626136686.

Almost surely, 2^{23644236901156} is an apocalyptic number.

23644236901156 is the 4862534-th square number.

It is an amenable number.

23644236901156 is a deficient number, since it is larger than the sum of its proper divisors (17794997275821).

23644236901156 is an frugal number, since it uses more digits than its factorization.

23644236901156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7260 (or 3630 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 52.

The spelling of 23644236901156 in words is "twenty-three trillion, six hundred forty-four billion, two hundred thirty-six million, nine hundred one thousand, one hundred fifty-six".