11546643904 has 28 divisors (see below), whose sum is σ = 23652000448. Its totient is φ = 5587084800.

The previous prime is 11546643887. The next prime is 11546643947. The reversal of 11546643904 is 40934664511.

It is a super-2 number, since 2×11546643904² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2907957 + ... + 2911924.

Almost surely, 2^11546643904 is an apocalyptic number.

It is an amenable number.

11546643904 is an abundant number, since it is smaller than the sum of its proper divisors (12105356544).

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

11546643904 is an equidigital number, since it uses as much as digits as its factorization.

11546643904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5819924 (or 5819914 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 11546643904 in words is "eleven billion, five hundred forty-six million, six hundred forty-three thousand, nine hundred four".