11666815460 has 48 divisors (see below), whose sum is σ = 24826253760. Its totient is φ = 4605045120.

The previous prime is 11666815441. The next prime is 11666815477. The reversal of 11666815460 is 6451866611.

It is a super-2 number, since 2×11666815460² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 456542 + ... + 481418.

It is an arithmetic number, because the mean of its divisors is an integer number (517213620).

Almost surely, 2^11666815460 is an apocalyptic number.

11666815460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11666815460 is an abundant number, since it is smaller than the sum of its proper divisors (13159438300).

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

11666815460 is a wasteful number, since it uses less digits than its factorization.

11666815460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25196 (or 25194 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 44.

The spelling of 11666815460 in words is "eleven billion, six hundred sixty-six million, eight hundred fifteen thousand, four hundred sixty".