72766016 has 14 divisors (see below), whose sum is σ = 144395190. Its totient is φ = 36382976.

The previous prime is 72766009. The next prime is 72766039. The reversal of 72766016 is 61066727.

It can be written as a sum of positive squares in only one way, i.e., 69889600 + 2876416 = 8360^2 + 1696^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 568421 + ... + 568548.

Almost surely, 2^72766016 is an apocalyptic number.

It is an amenable number.

72766016 is a deficient number, since it is larger than the sum of its proper divisors (71629174).

72766016 is a wasteful number, since it uses less digits than its factorization.

72766016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136981 (or 1136971 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 72766016 is about 8530.2998774955. The cubic root of 72766016 is about 417.4869127096.

The spelling of 72766016 in words is "seventy-two million, seven hundred sixty-six thousand, sixteen".