720677168 has 10 divisors (see below), whose sum is σ = 1396312044. Its totient is φ = 360338576.

The previous prime is 720677161. The next prime is 720677183. The reversal of 720677168 is 861776027.

It is not an unprimeable number, because it can be changed into a prime (720677161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22521146 + ... + 22521177.

Almost surely, 2^720677168 is an apocalyptic number.

It is an amenable number.

720677168 is a deficient number, since it is larger than the sum of its proper divisors (675634876).

720677168 is a wasteful number, since it uses less digits than its factorization.

720677168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45042331 (or 45042325 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 44.

The square root of 720677168 is about 26845.4310451518. The cubic root of 720677168 is about 896.5618486640.

The spelling of 720677168 in words is "seven hundred twenty million, six hundred seventy-seven thousand, one hundred sixty-eight".