647957598220 has 48 divisors (see below), whose sum is σ = 1370001191328. Its totient is φ = 257414976000.

The previous prime is 647957598199. The next prime is 647957598241. The reversal of 647957598220 is 22895759746.

It is an interprime number because it is at equal distance from previous prime (647957598199) and next prime (647957598241).

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, 7022304 + ... + 7113976.

It is an arithmetic number, because the mean of its divisors is an integer number (28541691486).

Almost surely, 2^647957598220 is an apocalyptic number.

It is an amenable number.

647957598220 is an abundant number, since it is smaller than the sum of its proper divisors (722043593108).

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

647957598220 is a wasteful number, since it uses less digits than its factorization.

647957598220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94090 (or 94088 counting only the distinct ones).

The product of its (nonzero) digits is 76204800, while the sum is 64.

The spelling of 647957598220 in words is "six hundred forty-seven billion, nine hundred fifty-seven million, five hundred ninety-eight thousand, two hundred twenty".