641874703516 has 6 divisors (see below), whose sum is σ = 1123280731160. Its totient is φ = 320937351756.

The previous prime is 641874703511. The next prime is 641874703531. The reversal of 641874703516 is 615307478146.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641874703511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80234337936 + ... + 80234337943.

Almost surely, 2^641874703516 is an apocalyptic number.

It is an amenable number.

641874703516 is a deficient number, since it is larger than the sum of its proper divisors (481406027644).

641874703516 is a wasteful number, since it uses less digits than its factorization.

641874703516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160468675883 (or 160468675881 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 52.

The spelling of 641874703516 in words is "six hundred forty-one billion, eight hundred seventy-four million, seven hundred three thousand, five hundred sixteen".