651316512 has 384 divisors, whose sum is σ = 2320109568. Its totient is φ = 154828800.

The previous prime is 651316499. The next prime is 651316531. The reversal of 651316512 is 215613156.

It is a super-2 number, since 2×651316512² = 848426397607692288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 651316512.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8922108 + ... + 8922180.

It is an arithmetic number, because the mean of its divisors is an integer number (6041952).

Almost surely, 2^651316512 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 651316512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1160054784).

651316512 is an abundant number, since it is smaller than the sum of its proper divisors (1668793056).

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

651316512 is a wasteful number, since it uses less digits than its factorization.

651316512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192 (or 184 counting only the distinct ones).

The product of its digits is 5400, while the sum is 30.

The square root of 651316512 is about 25520.9034322847. The cubic root of 651316512 is about 866.8235387304.

Adding to 651316512 its reverse (215613156), we get a palindrome (866929668).

The spelling of 651316512 in words is "six hundred fifty-one million, three hundred sixteen thousand, five hundred twelve".