11577998936520 has 96 divisors (see below), whose sum is σ = 39608943753600. Its totient is φ = 2924968150656.

The previous prime is 11577998936513. The next prime is 11577998936521. The reversal of 11577998936520 is 2563989977511.

11577998936520 is a `hidden beast` number, since 1 + 1 + 5 + 7 + 7 + 9 + 9 + 8 + 93 + 6 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (11577998936521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 846338112 + ... + 846351791.

It is an arithmetic number, because the mean of its divisors is an integer number (412593164100).

Almost surely, 2^{11577998936520} is an apocalyptic number.

11577998936520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11577998936520 is an abundant number, since it is smaller than the sum of its proper divisors (28030944817080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11577998936520 is a wasteful number, since it uses less digits than its factorization.

11577998936520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1692689939 (or 1692689932 counting only the distinct ones).

The product of its (nonzero) digits is 257191200, while the sum is 72.

The spelling of 11577998936520 in words is "eleven trillion, five hundred seventy-seven billion, nine hundred ninety-eight million, nine hundred thirty-six thousand, five hundred twenty".