651036672 has 432 divisors, whose sum is σ = 2338081200. Its totient is φ = 172523520.

The previous prime is 651036667. The next prime is 651036707. The reversal of 651036672 is 276630156.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 34265079 + ... + 34265097.

It is an arithmetic number, because the mean of its divisors is an integer number (5412225).

Almost surely, 2^651036672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 651036672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1169040600).

651036672 is an abundant number, since it is smaller than the sum of its proper divisors (1687044528).

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

651036672 is a wasteful number, since it uses less digits than its factorization.

651036672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84 (or 48 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 651036672 is about 25515.4202787256. The cubic root of 651036672 is about 866.6993765432.

The spelling of 651036672 in words is "six hundred fifty-one million, thirty-six thousand, six hundred seventy-two".