11667486820 has 24 divisors (see below), whose sum is σ = 26729152128. Its totient is φ = 4242722400.

The previous prime is 11667486811. The next prime is 11667486821. The reversal of 11667486820 is 2868476611.

It is a super-2 number, since 2×11667486820² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11667486821) 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, 26516796 + ... + 26517235.

It is an arithmetic number, because the mean of its divisors is an integer number (1113714672).

Almost surely, 2^11667486820 is an apocalyptic number.

11667486820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11667486820 is an abundant number, since it is smaller than the sum of its proper divisors (15061665308).

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

11667486820 is a wasteful number, since it uses less digits than its factorization.

11667486820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53034051 (or 53034049 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 49.

The spelling of 11667486820 in words is "eleven billion, six hundred sixty-seven million, four hundred eighty-six thousand, eight hundred twenty".