12177964213636 has 27 divisors (see below), whose sum is σ = 23077053825861. Its totient is φ = 5620556991504.

The previous prime is 12177964213573. The next prime is 12177964213699. The reversal of 12177964213636 is 63631246977121.

The square root of 12177964213636 is 3489694.

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

It is an interprime number because it is at equal distance from previous prime (12177964213573) and next prime (12177964213699).

It can be written as a sum of positive squares in only one way, i.e., 1801473996100 + 10376490217536 = 1342190^2 + 3221256^2 .

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, 90664935 + ... + 90799153.

Almost surely, 2^{12177964213636} is an apocalyptic number.

12177964213636 is the 3489694-th square number.

It is an amenable number.

12177964213636 is a deficient number, since it is larger than the sum of its proper divisors (10899089612225).

12177964213636 is an frugal number, since it uses more digits than its factorization.

12177964213636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268468 (or 134234 counting only the distinct ones).

The product of its digits is 13716864, while the sum is 58.

The spelling of 12177964213636 in words is "twelve trillion, one hundred seventy-seven billion, nine hundred sixty-four million, two hundred thirteen thousand, six hundred thirty-six".