651214664 has 16 divisors (see below), whose sum is σ = 1285292400. Its totient is φ = 308470032.

The previous prime is 651214637. The next prime is 651214667. The reversal of 651214664 is 466412156.

651214664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (651214667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2142002 + ... + 2142305.

It is an arithmetic number, because the mean of its divisors is an integer number (80330775).

Almost surely, 2^651214664 is an apocalyptic number.

It is an amenable number.

651214664 is a deficient number, since it is larger than the sum of its proper divisors (634077736).

651214664 is a wasteful number, since it uses less digits than its factorization.

651214664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4284332 (or 4284328 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The square root of 651214664 is about 25518.9079703658. The cubic root of 651214664 is about 866.7783539166.

The spelling of 651214664 in words is "six hundred fifty-one million, two hundred fourteen thousand, six hundred sixty-four".