640124116630512 has 80 divisors (see below), whose sum is σ = 1653944180609952. Its totient is φ = 213337262407680.

The previous prime is 640124116630511. The next prime is 640124116630513. The reversal of 640124116630512 is 215036611421046.

It is an interprime number because it is at equal distance from previous prime (640124116630511) and next prime (640124116630513).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (640124116630511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7119010578 + ... + 7119100494.

Almost surely, 2^{640124116630512} is an apocalyptic number.

It is an amenable number.

640124116630512 is an abundant number, since it is smaller than the sum of its proper divisors (1013820063979440).

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

640124116630512 is a wasteful number, since it uses less digits than its factorization.

640124116630512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114306 (or 114300 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 640124116630512 in words is "six hundred forty trillion, one hundred twenty-four billion, one hundred sixteen million, six hundred thirty thousand, five hundred twelve".