11523660264656 has 10 divisors (see below), whose sum is σ = 22327091762802. Its totient is φ = 5761830132320.

The previous prime is 11523660264647. The next prime is 11523660264751. The reversal of 11523660264656 is 65646206632511.

It can be written as a sum of positive squares in only one way, i.e., 8779866791056 + 2743793473600 = 2963084^2 + 1656440^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11523660264598 and 11523660264607.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360114383255 + ... + 360114383286.

Almost surely, 2^{11523660264656} is an apocalyptic number.

11523660264656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11523660264656 is a deficient number, since it is larger than the sum of its proper divisors (10803431498146).

11523660264656 is an equidigital number, since it uses as much as digits as its factorization.

11523660264656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720228766549 (or 720228766543 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 53.

The spelling of 11523660264656 in words is "eleven trillion, five hundred twenty-three billion, six hundred sixty million, two hundred sixty-four thousand, six hundred fifty-six".