6639162355 has 16 divisors (see below), whose sum is σ = 9155450304. Its totient is φ = 4527411840.

The previous prime is 6639162329. The next prime is 6639162373. The reversal of 6639162355 is 5532619366.

It is a happy number.

It is not a de Polignac number, because 6639162355 - 2¹⁹ = 6638638067 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 517672 + ... + 530341.

It is an arithmetic number, because the mean of its divisors is an integer number (572215644).

Almost surely, 2^6639162355 is an apocalyptic number.

6639162355 is a deficient number, since it is larger than the sum of its proper divisors (2516287949).

6639162355 is a wasteful number, since it uses less digits than its factorization.

6639162355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048206.

The product of its digits is 874800, while the sum is 46.

The square root of 6639162355 is about 81481.0551907620. The cubic root of 6639162355 is about 1879.4802353501.

The spelling of 6639162355 in words is "six billion, six hundred thirty-nine million, one hundred sixty-two thousand, three hundred fifty-five".