11379166123581 has 48 divisors (see below), whose sum is σ = 16813504641024. Its totient is φ = 7412673100032.

The previous prime is 11379166123571. The next prime is 11379166123643. The reversal of 11379166123581 is 18532166197311.

11379166123581 is a `hidden beast` number, since 1 + 1 + 3 + 7 + 9 + 16 + 612 + 3 + 5 + 8 + 1 = 666.

It is not a de Polignac number, because 11379166123581 - 2²⁵ = 11379132569149 is a prime.

It is a super-2 number, since 2×11379166123581² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11379166123511) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1373130420 + ... + 1373138706.

It is an arithmetic number, because the mean of its divisors is an integer number (350281346688).

Almost surely, 2^{11379166123581} is an apocalyptic number.

It is an amenable number.

11379166123581 is a deficient number, since it is larger than the sum of its proper divisors (5434338517443).

11379166123581 is a wasteful number, since it uses less digits than its factorization.

11379166123581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13210 (or 13207 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 54.

The spelling of 11379166123581 in words is "eleven trillion, three hundred seventy-nine billion, one hundred sixty-six million, one hundred twenty-three thousand, five hundred eighty-one".