648112536320 has 72 divisors (see below), whose sum is σ = 1552761890736. Its totient is φ = 259189936128.

The previous prime is 648112536319. The next prime is 648112536343. The reversal of 648112536320 is 23635211846.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6262919 + ... + 6365561.

Almost surely, 2^648112536320 is an apocalyptic number.

It is an amenable number.

648112536320 is an abundant number, since it is smaller than the sum of its proper divisors (904649354416).

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

648112536320 is a wasteful number, since it uses less digits than its factorization.

648112536320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107597 (or 107583 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 648112536320 in words is "six hundred forty-eight billion, one hundred twelve million, five hundred thirty-six thousand, three hundred twenty".