13166604240 has 40 divisors (see below), whose sum is σ = 40816473888. Its totient is φ = 3511094400.

The previous prime is 13166604233. The next prime is 13166604251. The reversal of 13166604240 is 4240666131.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27430186 + ... + 27430665.

Almost surely, 2^13166604240 is an apocalyptic number.

13166604240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13166604240 is an abundant number, since it is smaller than the sum of its proper divisors (27649869648).

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

13166604240 is a wasteful number, since it uses less digits than its factorization.

13166604240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54860867 (or 54860861 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The spelling of 13166604240 in words is "thirteen billion, one hundred sixty-six million, six hundred four thousand, two hundred forty".