756661364040 has 64 divisors (see below), whose sum is σ = 2271896890560. Its totient is φ = 201606337280.

The previous prime is 756661364029. The next prime is 756661364059. The reversal of 756661364040 is 40463166657.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2513631 + ... + 2798510.

It is an arithmetic number, because the mean of its divisors is an integer number (35498388915).

Almost surely, 2^756661364040 is an apocalyptic number.

It is an amenable number.

756661364040 is an abundant number, since it is smaller than the sum of its proper divisors (1515235526520).

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

756661364040 is a wasteful number, since it uses less digits than its factorization.

756661364040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5313342 (or 5313338 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 48.

The spelling of 756661364040 in words is "seven hundred fifty-six billion, six hundred sixty-one million, three hundred sixty-four thousand, forty".