651995322488 has 16 divisors (see below), whose sum is σ = 1248501682080. Its totient is φ = 319061540608.

The previous prime is 651995322469. The next prime is 651995322497. The reversal of 651995322488 is 884223599156.

It is a super-2 number, since 2×651995322488² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 651995322488.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 867014681 + ... + 867015432.

It is an arithmetic number, because the mean of its divisors is an integer number (78031355130).

Almost surely, 2^651995322488 is an apocalyptic number.

It is an amenable number.

651995322488 is a deficient number, since it is larger than the sum of its proper divisors (596506359592).

651995322488 is a wasteful number, since it uses less digits than its factorization.

651995322488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1734030166 (or 1734030162 counting only the distinct ones).

The product of its digits is 37324800, while the sum is 62.

The spelling of 651995322488 in words is "six hundred fifty-one billion, nine hundred ninety-five million, three hundred twenty-two thousand, four hundred eighty-eight".