66662794 has 8 divisors (see below), whose sum is σ = 109084608. Its totient is φ = 30301260.

The previous prime is 66662777. The next prime is 66662801. The reversal of 66662794 is 49726666.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 1515042 + ... + 1515085.

It is an arithmetic number, because the mean of its divisors is an integer number (13635576).

Almost surely, 2^66662794 is an apocalyptic number.

66662794 is a deficient number, since it is larger than the sum of its proper divisors (42421814).

66662794 is a wasteful number, since it uses less digits than its factorization.

66662794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3030140.

The product of its digits is 653184, while the sum is 46.

The square root of 66662794 is about 8164.7286544012. The cubic root of 66662794 is about 405.4722814392.

The spelling of 66662794 in words is "sixty-six million, six hundred sixty-two thousand, seven hundred ninety-four".