65916628 has 12 divisors (see below), whose sum is σ = 115617600. Its totient is φ = 32883032.

The previous prime is 65916593. The next prime is 65916637. The reversal of 65916628 is 82661956.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16828 + ... + 20371.

It is an arithmetic number, because the mean of its divisors is an integer number (9634800).

Almost surely, 2^65916628 is an apocalyptic number.

It is an amenable number.

65916628 is a deficient number, since it is larger than the sum of its proper divisors (49700972).

65916628 is a wasteful number, since it uses less digits than its factorization.

65916628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37646 (or 37644 counting only the distinct ones).

The product of its digits is 155520, while the sum is 43.

The square root of 65916628 is about 8118.9055912728. The cubic root of 65916628 is about 403.9537655812.

The spelling of 65916628 in words is "sixty-five million, nine hundred sixteen thousand, six hundred twenty-eight".