651464216 has 16 divisors (see below), whose sum is σ = 1315456800. Its totient is φ = 300675744.

The previous prime is 651464189. The next prime is 651464279. The reversal of 651464216 is 612464156.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3131936 + ... + 3132143.

It is an arithmetic number, because the mean of its divisors is an integer number (82216050).

Almost surely, 2^651464216 is an apocalyptic number.

It is an amenable number.

651464216 is an abundant number, since it is smaller than the sum of its proper divisors (663992584).

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

651464216 is a wasteful number, since it uses less digits than its factorization.

651464216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6264098 (or 6264094 counting only the distinct ones).

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

The square root of 651464216 is about 25523.7970529465. The cubic root of 651464216 is about 866.8890591670.

The spelling of 651464216 in words is "six hundred fifty-one million, four hundred sixty-four thousand, two hundred sixteen".