648310516 has 24 divisors (see below), whose sum is σ = 1309464576. Its totient is φ = 275095200.

The previous prime is 648310511. The next prime is 648310519. The reversal of 648310516 is 615013846.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648310511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111796 + ... + 117451.

It is an arithmetic number, because the mean of its divisors is an integer number (54561024).

Almost surely, 2^648310516 is an apocalyptic number.

It is an amenable number.

648310516 is an abundant number, since it is smaller than the sum of its proper divisors (661154060).

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

648310516 is a wasteful number, since it uses less digits than its factorization.

648310516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229359 (or 229357 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 648310516 is about 25461.9425024879. The cubic root of 648310516 is about 865.4879428180.

The spelling of 648310516 in words is "six hundred forty-eight million, three hundred ten thousand, five hundred sixteen".