680335552512 has 1092 divisors, whose sum is σ = 2571949754640. Its totient is φ = 176053616640.

The previous prime is 680335552493. The next prime is 680335552529. The reversal of 680335552512 is 215255533086.

680335552512 is a `hidden beast` number, since 6 + 8 + 0 + 33 + 55 + 52 + 512 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 2529128314 + ... + 2529128582.

Almost surely, 2^680335552512 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 680335552512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1285974877320).

680335552512 is an abundant number, since it is smaller than the sum of its proper divisors (1891614202128).

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

680335552512 is an equidigital number, since it uses as much as digits as its factorization.

680335552512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340 (or 292 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 45.

The spelling of 680335552512 in words is "six hundred eighty billion, three hundred thirty-five million, five hundred fifty-two thousand, five hundred twelve".