680171175936 has 384 divisors, whose sum is σ = 2363936577600. Its totient is φ = 184095866880.

The previous prime is 680171175899. The next prime is 680171175947. The reversal of 680171175936 is 639571171086.

It is a tau number, because it is divible by the number of its divisors (384).

It is a super-2 number, since 2×680171175936² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39214626 + ... + 39231966.

Almost surely, 2^680171175936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 680171175936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1181968288800).

680171175936 is an abundant number, since it is smaller than the sum of its proper divisors (1683765401664).

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

680171175936 is a wasteful number, since it uses less digits than its factorization.

680171175936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17403 (or 17372 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 54.

The spelling of 680171175936 in words is "six hundred eighty billion, one hundred seventy-one million, one hundred seventy-five thousand, nine hundred thirty-six".