3166478720 has 64 divisors (see below), whose sum is σ = 7745973840. Its totient is φ = 1237125120.

The previous prime is 3166478719. The next prime is 3166478723. The reversal of 3166478720 is 278746613.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3166478723) 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, 30011 + ... + 85050.

Almost surely, 2^3166478720 is an apocalyptic number.

It is an amenable number.

3166478720 is an abundant number, since it is smaller than the sum of its proper divisors (4579495120).

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

3166478720 is a wasteful number, since it uses less digits than its factorization.

3166478720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115123 (or 115111 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 44.

The square root of 3166478720 is about 56271.4734123783. The cubic root of 3166478720 is about 1468.4489664139.

The spelling of 3166478720 in words is "three billion, one hundred sixty-six million, four hundred seventy-eight thousand, seven hundred twenty".