646343133606630 has 96 divisors (see below), whose sum is σ = 1711600887919104. Its totient is φ = 169185709205568.

The previous prime is 646343133606629. The next prime is 646343133606683. The reversal of 646343133606630 is 36606331343646.

646343133606630 is a `hidden beast` number, since 6 + 4 + 63 + 431 + 3 + 3 + 60 + 66 + 30 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 187671454 + ... + 191084433.

It is an arithmetic number, because the mean of its divisors is an integer number (17829175915824).

Almost surely, 2^{646343133606630} is an apocalyptic number.

646343133606630 is an abundant number, since it is smaller than the sum of its proper divisors (1065257754312474).

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

646343133606630 is a wasteful number, since it uses less digits than its factorization.

646343133606630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378756250 (or 378756247 counting only the distinct ones).

The product of its (nonzero) digits is 30233088, while the sum is 54.

The spelling of 646343133606630 in words is "six hundred forty-six trillion, three hundred forty-three billion, one hundred thirty-three million, six hundred six thousand, six hundred thirty".