6620160388 has 24 divisors (see below), whose sum is σ = 11785188800. Its totient is φ = 3253190688.

The previous prime is 6620160373. The next prime is 6620160401. The reversal of 6620160388 is 8830610266.

It is a self number, because there is not a number n which added to its sum of digits gives 6620160388.

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, 89518 + ... + 145786.

Almost surely, 2^6620160388 is an apocalyptic number.

It is an amenable number.

6620160388 is a deficient number, since it is larger than the sum of its proper divisors (5165028412).

6620160388 is a wasteful number, since it uses less digits than its factorization.

6620160388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56779 (or 56777 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 6620160388 is about 81364.3680489193. The cubic root of 6620160388 is about 1877.6854332355.

The spelling of 6620160388 in words is "six billion, six hundred twenty million, one hundred sixty thousand, three hundred eighty-eight".