66662344 has 24 divisors (see below), whose sum is σ = 145399590. Its totient is φ = 28569408.

The previous prime is 66662327. The next prime is 66662353. The reversal of 66662344 is 44326666.

It can be written as a sum of positive squares in only one way, i.e., 66618244 + 44100 = 8162^2 + 210^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 84637 + ... + 85420.

Almost surely, 2^66662344 is an apocalyptic number.

It is an amenable number.

66662344 is an abundant number, since it is smaller than the sum of its proper divisors (78737246).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66662344 is a wasteful number, since it uses less digits than its factorization.

66662344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170077 (or 170066 counting only the distinct ones).

The product of its digits is 124416, while the sum is 37.

The square root of 66662344 is about 8164.7010967947. The cubic root of 66662344 is about 405.4713690715.

The spelling of 66662344 in words is "sixty-six million, six hundred sixty-two thousand, three hundred forty-four".