11661161600466 has 48 divisors (see below), whose sum is σ = 29546774921664. Its totient is φ = 3254277654432.

The previous prime is 11661161600437. The next prime is 11661161600483. The reversal of 11661161600466 is 66400616116611.

11661161600466 is a `hidden beast` number, since 1 + 1 + 66 + 11 + 61 + 60 + 0 + 466 = 666.

It is a super-2 number, since 2×11661161600466² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1076144601 + ... + 1076155436.

It is an arithmetic number, because the mean of its divisors is an integer number (615557810868).

Almost surely, 2^{11661161600466} is an apocalyptic number.

11661161600466 is an abundant number, since it is smaller than the sum of its proper divisors (17885613321198).

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

11661161600466 is a wasteful number, since it uses less digits than its factorization.

11661161600466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2152300095 (or 2152300092 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The spelling of 11661161600466 in words is "eleven trillion, six hundred sixty-one billion, one hundred sixty-one million, six hundred thousand, four hundred sixty-six".