641645202624 has 28 divisors (see below), whose sum is σ = 1697686265784. Its totient is φ = 213881734144.

The previous prime is 641645202617. The next prime is 641645202629. The reversal of 641645202624 is 426202546146.

It is not an unprimeable number, because it can be changed into a prime (641645202629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1670950857 + ... + 1670951240.

Almost surely, 2^641645202624 is an apocalyptic number.

641645202624 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

641645202624 is an abundant number, since it is smaller than the sum of its proper divisors (1056041063160).

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

641645202624 is a wasteful number, since it uses less digits than its factorization.

641645202624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3341902112 (or 3341902102 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 42.

The spelling of 641645202624 in words is "six hundred forty-one billion, six hundred forty-five million, two hundred two thousand, six hundred twenty-four".