66876536 has 16 divisors (see below), whose sum is σ = 125917440. Its totient is φ = 33298560.

The previous prime is 66876529. The next prime is 66876569. The reversal of 66876536 is 63567866.

It is a happy number.

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, 15416 + ... + 19271.

It is an arithmetic number, because the mean of its divisors is an integer number (7869840).

Almost surely, 2^66876536 is an apocalyptic number.

It is an amenable number.

66876536 is a deficient number, since it is larger than the sum of its proper divisors (59040904).

66876536 is a wasteful number, since it uses less digits than its factorization.

66876536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34934 (or 34930 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 47.

The square root of 66876536 is about 8177.8075301391. The cubic root of 66876536 is about 405.9051765578.

The spelling of 66876536 in words is "sixty-six million, eight hundred seventy-six thousand, five hundred thirty-six".