11666660275 has 24 divisors (see below), whose sum is σ = 14570629920. Its totient is φ = 9266499840.

The previous prime is 11666660273. The next prime is 11666660279. The reversal of 11666660275 is 57206666611.

It is not a de Polignac number, because 11666660275 - 2¹ = 11666660273 is a prime.

It is a super-2 number, since 2×11666660275² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11666660273) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2055141 + ... + 2060809.

It is an arithmetic number, because the mean of its divisors is an integer number (607109580).

Almost surely, 2^11666660275 is an apocalyptic number.

11666660275 is a deficient number, since it is larger than the sum of its proper divisors (2903969645).

11666660275 is a wasteful number, since it uses less digits than its factorization.

11666660275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6255 (or 6250 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 11666660275 in words is "eleven billion, six hundred sixty-six million, six hundred sixty thousand, two hundred seventy-five".