680663250370 has 16 divisors (see below), whose sum is σ = 1225256901048. Its totient is φ = 272251288960.

The previous prime is 680663250299. The next prime is 680663250409. The reversal of 680663250370 is 73052366086.

It can be written as a sum of positive squares in 4 ways, for example, as 442274211369 + 238389039001 = 665037^2 + 488251^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 680663250370.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1546219 + ... + 1937038.

Almost surely, 2^680663250370 is an apocalyptic number.

680663250370 is a deficient number, since it is larger than the sum of its proper divisors (544593650678).

680663250370 is a wasteful number, since it uses less digits than its factorization.

680663250370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3502805.

The product of its (nonzero) digits is 1088640, while the sum is 46.

The spelling of 680663250370 in words is "six hundred eighty billion, six hundred sixty-three million, two hundred fifty thousand, three hundred seventy".