651562216 has 32 divisors (see below), whose sum is σ = 1315929600. Its totient is φ = 301561920.

The previous prime is 651562199. The next prime is 651562229. The reversal of 651562216 is 612265156.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

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, 51411 + ... + 62818.

It is an arithmetic number, because the mean of its divisors is an integer number (41122800).

Almost surely, 2^651562216 is an apocalyptic number.

It is an amenable number.

651562216 is an abundant number, since it is smaller than the sum of its proper divisors (664367384).

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

651562216 is a wasteful number, since it uses less digits than its factorization.

651562216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114289 (or 114285 counting only the distinct ones).

The product of its digits is 21600, while the sum is 34.

The square root of 651562216 is about 25525.7167578111. The cubic root of 651562216 is about 866.9325258001.

The spelling of 651562216 in words is "six hundred fifty-one million, five hundred sixty-two thousand, two hundred sixteen".