66654652 has 12 divisors (see below), whose sum is σ = 117233200. Its totient is φ = 33159456.

The previous prime is 66654629. The next prime is 66654661. The reversal of 66654652 is 25645666.

It is a super-2 number, since 2×66654652² = 8885685266482208, which contains 22 as substring.

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, 41073 + ... + 42664.

Almost surely, 2^66654652 is an apocalyptic number.

It is an amenable number.

66654652 is a deficient number, since it is larger than the sum of its proper divisors (50578548).

66654652 is a wasteful number, since it uses less digits than its factorization.

66654652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83940 (or 83938 counting only the distinct ones).

The product of its digits is 259200, while the sum is 40.

The square root of 66654652 is about 8164.2300310562. The cubic root of 66654652 is about 405.4557730316.

The spelling of 66654652 in words is "sixty-six million, six hundred fifty-four thousand, six hundred fifty-two".