3215660080 has 20 divisors (see below), whose sum is σ = 7476409872. Its totient is φ = 1286264000.

The previous prime is 3215660069. The next prime is 3215660083. The reversal of 3215660080 is 800665123.

3215660080 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (3215660083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20097796 + ... + 20097955.

Almost surely, 2^3215660080 is an apocalyptic number.

It is an amenable number.

3215660080 is an abundant number, since it is smaller than the sum of its proper divisors (4260749792).

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

3215660080 is a wasteful number, since it uses less digits than its factorization.

3215660080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40195764 (or 40195758 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 3215660080 is about 56706.7904223119. The cubic root of 3215660080 is about 1476.0125316269.

The spelling of 3215660080 in words is "three billion, two hundred fifteen million, six hundred sixty thousand, eighty".