640616311315 has 8 divisors (see below), whose sum is σ = 768801015360. Its totient is φ = 512452087872.

The previous prime is 640616311267. The next prime is 640616311333. The reversal of 640616311315 is 513113616046.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 640616311315 - 2⁷ = 640616311187 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5051250 + ... + 5176519.

It is an arithmetic number, because the mean of its divisors is an integer number (96100126920).

Almost surely, 2^640616311315 is an apocalyptic number.

640616311315 is a deficient number, since it is larger than the sum of its proper divisors (128184704045).

640616311315 is a wasteful number, since it uses less digits than its factorization.

640616311315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10240301.

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 640616311315 in words is "six hundred forty billion, six hundred sixteen million, three hundred eleven thousand, three hundred fifteen".