3220157916 has 60 divisors (see below), whose sum is σ = 8427907488. Its totient is φ = 1072139328.

The previous prime is 3220157903. The next prime is 3220157929. The reversal of 3220157916 is 6197510223.

It is an interprime number because it is at equal distance from previous prime (3220157903) and next prime (3220157929).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 298285 + ... + 308891.

Almost surely, 2^3220157916 is an apocalyptic number.

3220157916 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3220157916 is an abundant number, since it is smaller than the sum of its proper divisors (5207749572).

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

3220157916 is a wasteful number, since it uses less digits than its factorization.

3220157916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11560 (or 11549 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 3220157916 is about 56746.4352713014. The cubic root of 3220157916 is about 1476.7003913733.

The spelling of 3220157916 in words is "three billion, two hundred twenty million, one hundred fifty-seven thousand, nine hundred sixteen".