66662852 has 6 divisors (see below), whose sum is σ = 116659998. Its totient is φ = 33331424.

The previous prime is 66662837. The next prime is 66662941. The reversal of 66662852 is 25826666.

It can be written as a sum of positive squares in only one way, i.e., 65674816 + 988036 = 8104^2 + 994^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8332853 + ... + 8332860.

It is an arithmetic number, because the mean of its divisors is an integer number (19443333).

Almost surely, 2^66662852 is an apocalyptic number.

It is an amenable number.

66662852 is a deficient number, since it is larger than the sum of its proper divisors (49997146).

66662852 is a wasteful number, since it uses less digits than its factorization.

66662852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16665717 (or 16665715 counting only the distinct ones).

The product of its digits is 207360, while the sum is 41.

The square root of 66662852 is about 8164.7322062637. The cubic root of 66662852 is about 405.4723990330.

The spelling of 66662852 in words is "sixty-six million, six hundred sixty-two thousand, eight hundred fifty-two".