6616711428 has 24 divisors (see below), whose sum is σ = 15440564832. Its totient is φ = 2205345984.

The previous prime is 6616711417. The next prime is 6616711471. The reversal of 6616711428 is 8241176166.

It is a self number, because there is not a number n which added to its sum of digits gives 6616711428.

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, 130651 + ... + 174077.

It is an arithmetic number, because the mean of its divisors is an integer number (643356868).

Almost surely, 2^6616711428 is an apocalyptic number.

It is an amenable number.

6616711428 is an abundant number, since it is smaller than the sum of its proper divisors (8823853404).

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

6616711428 is a wasteful number, since it uses less digits than its factorization.

6616711428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56131 (or 56129 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 6616711428 is about 81343.1707520674. The cubic root of 6616711428 is about 1877.3592987953.

The spelling of 6616711428 in words is "six billion, six hundred sixteen million, seven hundred eleven thousand, four hundred twenty-eight".