11666748858 has 16 divisors (see below), whose sum is σ = 23716014816. Its totient is φ = 3825163440.

The previous prime is 11666748851. The next prime is 11666748859. The reversal of 11666748858 is 85884766611.

It is a happy number.

It is a super-2 number, since 2×11666748858² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11666748851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15937816 + ... + 15938547.

It is an arithmetic number, because the mean of its divisors is an integer number (1482250926).

Almost surely, 2^11666748858 is an apocalyptic number.

11666748858 is an abundant number, since it is smaller than the sum of its proper divisors (12049265958).

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

11666748858 is a wasteful number, since it uses less digits than its factorization.

11666748858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31876429.

The product of its digits is 15482880, while the sum is 60.

The spelling of 11666748858 in words is "eleven billion, six hundred sixty-six million, seven hundred forty-eight thousand, eight hundred fifty-eight".