11667005620 has 24 divisors (see below), whose sum is σ = 25291058688. Its totient is φ = 4516260000.

The previous prime is 11667005591. The next prime is 11667005621. The reversal of 11667005620 is 2650076611.

It is a happy number.

It is a super-2 number, since 2×11667005620² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11667005621) 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, 9408256 + ... + 9409495.

It is an arithmetic number, because the mean of its divisors is an integer number (1053794112).

Almost surely, 2^11667005620 is an apocalyptic number.

11667005620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11667005620 is an abundant number, since it is smaller than the sum of its proper divisors (13624053068).

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

11667005620 is a wasteful number, since it uses less digits than its factorization.

11667005620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18817791 (or 18817789 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The spelling of 11667005620 in words is "eleven billion, six hundred sixty-seven million, five thousand, six hundred twenty".