11261542631166 has 24 divisors (see below), whose sum is σ = 24401011667760. Its totient is φ = 3753693292416.

The previous prime is 11261542631099. The next prime is 11261542631189. The reversal of 11261542631166 is 66113624516211.

11261542631166 is a `hidden beast` number, since 1 + 1 + 2 + 6 + 1 + 5 + 4 + 2 + 631 + 1 + 6 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12403635 + ... + 13280558.

It is an arithmetic number, because the mean of its divisors is an integer number (1016708819490).

Almost surely, 2^{11261542631166} is an apocalyptic number.

11261542631166 is an abundant number, since it is smaller than the sum of its proper divisors (13139469036594).

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

11261542631166 is a wasteful number, since it uses less digits than its factorization.

11261542631166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25708560 (or 25708557 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The spelling of 11261542631166 in words is "eleven trillion, two hundred sixty-one billion, five hundred forty-two million, six hundred thirty-one thousand, one hundred sixty-six".