646754037060 has 48 divisors (see below), whose sum is σ = 1810953244800. Its totient is φ = 172463748864.

The previous prime is 646754037053. The next prime is 646754037079. The reversal of 646754037060 is 60730457646.

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 15 ways as a sum of consecutive naturals, for example, 3234681 + ... + 3428799.

It is an arithmetic number, because the mean of its divisors is an integer number (37728192600).

Almost surely, 2^646754037060 is an apocalyptic number.

646754037060 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

646754037060 is an abundant number, since it is smaller than the sum of its proper divisors (1164199207740).

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

646754037060 is a wasteful number, since it uses less digits than its factorization.

646754037060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249660 (or 249658 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 48.

The spelling of 646754037060 in words is "six hundred forty-six billion, seven hundred fifty-four million, thirty-seven thousand, sixty".