66134336 has 14 divisors (see below), whose sum is σ = 131235450. Its totient is φ = 33067136.

The previous prime is 66134329. The next prime is 66134347. The reversal of 66134336 is 63343166.

It can be written as a sum of positive squares in only one way, i.e., 51265600 + 14868736 = 7160^2 + 3856^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 516611 + ... + 516738.

Almost surely, 2^66134336 is an apocalyptic number.

It is an amenable number.

66134336 is a deficient number, since it is larger than the sum of its proper divisors (65101114).

66134336 is a wasteful number, since it uses less digits than its factorization.

66134336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033361 (or 1033351 counting only the distinct ones).

The product of its digits is 23328, while the sum is 32.

The square root of 66134336 is about 8132.3020111159. The cubic root of 66134336 is about 404.3980000964.

The spelling of 66134336 in words is "sixty-six million, one hundred thirty-four thousand, three hundred thirty-six".