11626166761 has 16 divisors (see below), whose sum is σ = 12942607680. Its totient is φ = 10353603520.

The previous prime is 11626166749. The next prime is 11626166791. The reversal of 11626166761 is 16766162611.

It is a cyclic number.

It is not a de Polignac number, because 11626166761 - 2¹⁵ = 11626133993 is a prime.

It is a super-2 number, since 2×11626166761² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11626166701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 365430 + ... + 395968.

It is an arithmetic number, because the mean of its divisors is an integer number (808912980).

Almost surely, 2^11626166761 is an apocalyptic number.

11626166761 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11626166761 is a deficient number, since it is larger than the sum of its proper divisors (1316440919).

11626166761 is a wasteful number, since it uses less digits than its factorization.

11626166761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31256.

The product of its digits is 108864, while the sum is 43.

The spelling of 11626166761 in words is "eleven billion, six hundred twenty-six million, one hundred sixty-six thousand, seven hundred sixty-one".