11660717650 has 48 divisors (see below), whose sum is σ = 22052104200. Its totient is φ = 4586816000.

The previous prime is 11660717641. The next prime is 11660717669. The reversal of 11660717650 is 5671706611.

It can be written as a sum of positive squares in 12 ways, for example, as 4047631641 + 7613086009 = 63621^2 + 87253^2 .

It is a super-2 number, since 2×11660717650² (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, 744702 + ... + 760198.

Almost surely, 2^11660717650 is an apocalyptic number.

11660717650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11660717650 is a deficient number, since it is larger than the sum of its proper divisors (10391386550).

11660717650 is a wasteful number, since it uses less digits than its factorization.

11660717650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15759 (or 15754 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 40.

The spelling of 11660717650 in words is "eleven billion, six hundred sixty million, seven hundred seventeen thousand, six hundred fifty".