6396028656 has 20 divisors (see below), whose sum is σ = 16523074152. Its totient is φ = 2132009536.

The previous prime is 6396028633. The next prime is 6396028687. The reversal of 6396028656 is 6568206936.

It is a junction number, because it is equal to n+sod(n) for n = 6396028599 and 6396028608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66625251 + ... + 66625346.

Almost surely, 2^6396028656 is an apocalyptic number.

It is an amenable number.

6396028656 is an abundant number, since it is smaller than the sum of its proper divisors (10127045496).

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

6396028656 is a wasteful number, since it uses less digits than its factorization.

6396028656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133250608 (or 133250602 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 51.

The square root of 6396028656 is about 79975.1752483232. The cubic root of 6396028656 is about 1856.2514259441.

The spelling of 6396028656 in words is "six billion, three hundred ninety-six million, twenty-eight thousand, six hundred fifty-six".