651983360 has 80 divisors (see below), whose sum is σ = 1786599936. Its totient is φ = 223531008.

The previous prime is 651983357. The next prime is 651983363. The reversal of 651983360 is 63389156.

It is an interprime number because it is at equal distance from previous prime (651983357) and next prime (651983363).

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (651983363) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 272 + ... + 36111.

Almost surely, 2^651983360 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 651983360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (893299968).

651983360 is an abundant number, since it is smaller than the sum of its proper divisors (1134616576).

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

651983360 is an equidigital number, since it uses as much as digits as its factorization.

651983360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36413 (or 36397 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 651983360 is about 25533.9648311812. The cubic root of 651983360 is about 867.1192691830.

The spelling of 651983360 in words is "six hundred fifty-one million, nine hundred eighty-three thousand, three hundred sixty".