680684555162 has 8 divisors (see below), whose sum is σ = 1023452075892. Its totient is φ = 339533863200.

The previous prime is 680684555149. The next prime is 680684555179. The reversal of 680684555162 is 261555486086.

It can be written as a sum of positive squares in 2 ways, for example, as 680676150961 + 8404201 = 825031^2 + 2899^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 680684555098 and 680684555107.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404206139 + ... + 404207822.

Almost surely, 2^680684555162 is an apocalyptic number.

680684555162 is a deficient number, since it is larger than the sum of its proper divisors (342767520730).

680684555162 is a wasteful number, since it uses less digits than its factorization.

680684555162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808414384.

The product of its (nonzero) digits is 13824000, while the sum is 56.

The spelling of 680684555162 in words is "six hundred eighty billion, six hundred eighty-four million, five hundred fifty-five thousand, one hundred sixty-two".