640140005320624 has 40 divisors (see below), whose sum is σ = 1248268770328320. Its totient is φ = 318010171968000.

The previous prime is 640140005320577. The next prime is 640140005320637. The reversal of 640140005320624 is 426023500041046.

640140005320624 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123805477 + ... + 128872324.

It is an arithmetic number, because the mean of its divisors is an integer number (31206719258208).

Almost surely, 2^{640140005320624} is an apocalyptic number.

It is an amenable number.

640140005320624 is a deficient number, since it is larger than the sum of its proper divisors (608128765007696).

640140005320624 is a wasteful number, since it uses less digits than its factorization.

640140005320624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252678829 (or 252678823 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 37.

The spelling of 640140005320624 in words is "six hundred forty trillion, one hundred forty billion, five million, three hundred twenty thousand, six hundred twenty-four".