641750266133700 has 144 divisors (see below), whose sum is σ = 1908365403463680. Its totient is φ = 166445260375680.

The previous prime is 641750266133687. The next prime is 641750266133741. The reversal of 641750266133700 is 7331662057146.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 200487252 + ... + 203663051.

Almost surely, 2^{641750266133700} is an apocalyptic number.

641750266133700 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

641750266133700 is an abundant number, since it is smaller than the sum of its proper divisors (1266615137329980).

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

641750266133700 is a wasteful number, since it uses less digits than its factorization.

641750266133700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404150466 (or 404150459 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 51.

The spelling of 641750266133700 in words is "six hundred forty-one trillion, seven hundred fifty billion, two hundred sixty-six million, one hundred thirty-three thousand, seven hundred".