671694451104 has 96 divisors (see below), whose sum is σ = 1768890977280. Its totient is φ = 223175860992.

The previous prime is 671694451079. The next prime is 671694451139. The reversal of 671694451104 is 401154496176.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99315627 + ... + 99322389.

It is an arithmetic number, because the mean of its divisors is an integer number (18425947680).

Almost surely, 2^671694451104 is an apocalyptic number.

It is an amenable number.

671694451104 is an abundant number, since it is smaller than the sum of its proper divisors (1097196526176).

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

671694451104 is a wasteful number, since it uses less digits than its factorization.

671694451104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9962 (or 9954 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 671694451104 in words is "six hundred seventy-one billion, six hundred ninety-four million, four hundred fifty-one thousand, one hundred four".