646104504610 has 32 divisors (see below), whose sum is σ = 1231498339200. Its totient is φ = 243219754752.

The previous prime is 646104504601. The next prime is 646104504611. The reversal of 646104504610 is 16405401646.

It is a super-2 number, since 2×646104504610² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 646104504610.

It is not an unprimeable number, because it can be changed into a prime (646104504611) by changing a digit.

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, 2057841 + ... + 2350939.

It is an arithmetic number, because the mean of its divisors is an integer number (38484323100).

Almost surely, 2^646104504610 is an apocalyptic number.

646104504610 is a deficient number, since it is larger than the sum of its proper divisors (585393834590).

646104504610 is a wasteful number, since it uses less digits than its factorization.

646104504610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306090.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 646104504610 in words is "six hundred forty-six billion, one hundred four million, five hundred four thousand, six hundred ten".