646324101126 has 96 divisors (see below), whose sum is σ = 1624001633280. Its totient is φ = 183710376000.

The previous prime is 646324101109. The next prime is 646324101139. The reversal of 646324101126 is 621101423646.

646324101126 is a `hidden beast` number, since 6 + 4 + 632 + 4 + 1 + 0 + 1 + 12 + 6 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 470550 + ... + 1230473.

It is an arithmetic number, because the mean of its divisors is an integer number (16916683680).

Almost surely, 2^646324101126 is an apocalyptic number.

646324101126 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

646324101126 is an abundant number, since it is smaller than the sum of its proper divisors (977677532154).

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

646324101126 is a wasteful number, since it uses less digits than its factorization.

646324101126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701162 (or 1701159 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 646324101126 in words is "six hundred forty-six billion, three hundred twenty-four million, one hundred one thousand, one hundred twenty-six".