720672016 has 10 divisors (see below), whose sum is σ = 1396302062. Its totient is φ = 360336000.

The previous prime is 720672013. The next prime is 720672019. The reversal of 720672016 is 610276027.

It is an interprime number because it is at equal distance from previous prime (720672013) and next prime (720672019).

It can be written as a sum of positive squares in only one way, i.e., 497468416 + 223203600 = 22304^2 + 14940^2 .

It is not an unprimeable number, because it can be changed into a prime (720672013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22520985 + ... + 22521016.

Almost surely, 2^720672016 is an apocalyptic number.

It is an amenable number.

720672016 is a deficient number, since it is larger than the sum of its proper divisors (675630046).

720672016 is a wasteful number, since it uses less digits than its factorization.

720672016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45042009 (or 45042003 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 720672016 is about 26845.3350882421. The cubic root of 720672016 is about 896.5597122022.

The spelling of 720672016 in words is "seven hundred twenty million, six hundred seventy-two thousand, sixteen".