66016276 has 12 divisors (see below), whose sum is σ = 116116308. Its totient is φ = 32840192.

The previous prime is 66016261. The next prime is 66016283. The reversal of 66016276 is 67261066.

It can be written as a sum of positive squares in 2 ways, for example, as 64963600 + 1052676 = 8060^2 + 1026^2 .

It is a congruent number.

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, 41101 + ... + 42676.

It is an arithmetic number, because the mean of its divisors is an integer number (9676359).

Almost surely, 2^66016276 is an apocalyptic number.

It is an amenable number.

66016276 is a deficient number, since it is larger than the sum of its proper divisors (50100032).

66016276 is a wasteful number, since it uses less digits than its factorization.

66016276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83978 (or 83976 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 66016276 is about 8125.0400614397. The cubic root of 66016276 is about 404.1572191412.

The spelling of 66016276 in words is "sixty-six million, sixteen thousand, two hundred seventy-six".