11667512610 has 48 divisors (see below), whose sum is σ = 32669038584. Its totient is φ = 2872002816.

The previous prime is 11667512599. The next prime is 11667512677. The reversal of 11667512610 is 1621576611.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6186923649 + 5480588961 = 78657^2 + 74031^2 .

It is a super-2 number, since 2×11667512610² (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 23 ways as a sum of consecutive naturals, for example, 4984947 + ... + 4987286.

Almost surely, 2^11667512610 is an apocalyptic number.

11667512610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11667512610 is an abundant number, since it is smaller than the sum of its proper divisors (21001525974).

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

11667512610 is a wasteful number, since it uses less digits than its factorization.

11667512610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9972259 (or 9972256 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The spelling of 11667512610 in words is "eleven billion, six hundred sixty-seven million, five hundred twelve thousand, six hundred ten".