6355920816 has 120 divisors (see below), whose sum is σ = 20801763840. Its totient is φ = 1773733248.

The previous prime is 6355920787. The next prime is 6355920817. The reversal of 6355920816 is 6180295536.

6355920816 is a `hidden beast` number, since 63 + 559 + 20 + 8 + 16 = 666.

It is not an unprimeable number, because it can be changed into a prime (6355920817) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29976 + ... + 116663.

It is an arithmetic number, because the mean of its divisors is an integer number (173348032).

Almost surely, 2^6355920816 is an apocalyptic number.

It is an amenable number.

6355920816 is an abundant number, since it is smaller than the sum of its proper divisors (14445843024).

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

6355920816 is a wasteful number, since it uses less digits than its factorization.

6355920816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146703 (or 146694 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The square root of 6355920816 is about 79724.0291003911. The cubic root of 6355920816 is about 1852.3632633043.

The spelling of 6355920816 in words is "six billion, three hundred fifty-five million, nine hundred twenty thousand, eight hundred sixteen".