11261655171 has 12 divisors (see below), whose sum is σ = 17518130448. Its totient is φ = 6930249264.

The previous prime is 11261655137. The next prime is 11261655179. The reversal of 11261655171 is 17155616211.

11261655171 is a `hidden beast` number, since 1 + 1 + 26 + 16 + 551 + 71 = 666.

It is not a de Polignac number, because 11261655171 - 2⁷ = 11261655043 is a prime.

It is a super-2 number, since 2×11261655171² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11261655179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48126615 + ... + 48126848.

It is an arithmetic number, because the mean of its divisors is an integer number (1459844204).

Almost surely, 2^11261655171 is an apocalyptic number.

11261655171 is a deficient number, since it is larger than the sum of its proper divisors (6256475277).

11261655171 is a wasteful number, since it uses less digits than its factorization.

11261655171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96253482 (or 96253479 counting only the distinct ones).

The product of its digits is 12600, while the sum is 36.

The spelling of 11261655171 in words is "eleven billion, two hundred sixty-one million, six hundred fifty-five thousand, one hundred seventy-one".