645463100600 has 48 divisors (see below), whose sum is σ = 1500892627200. Its totient is φ = 258152394240.

The previous prime is 645463100591. The next prime is 645463100651. The reversal of 645463100600 is 6001364546.

It is a super-2 number, since 2×645463100600² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1402121 + ... + 1804679.

It is an arithmetic number, because the mean of its divisors is an integer number (31268596400).

Almost surely, 2^645463100600 is an apocalyptic number.

It is an amenable number.

645463100600 is an abundant number, since it is smaller than the sum of its proper divisors (855429526600).

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

645463100600 is a wasteful number, since it uses less digits than its factorization.

645463100600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410592 (or 410583 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 645463100600 in words is "six hundred forty-five billion, four hundred sixty-three million, one hundred thousand, six hundred".