66656148 has 24 divisors (see below), whose sum is σ = 167495328. Its totient is φ = 20509536.

The previous prime is 66656137. The next prime is 66656153. The reversal of 66656148 is 84165666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213486 + ... + 213797.

It is an arithmetic number, because the mean of its divisors is an integer number (6978972).

Almost surely, 2^66656148 is an apocalyptic number.

It is an amenable number.

66656148 is an abundant number, since it is smaller than the sum of its proper divisors (100839180).

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

66656148 is a wasteful number, since it uses less digits than its factorization.

66656148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427303 (or 427301 counting only the distinct ones).

The product of its digits is 207360, while the sum is 42.

The square root of 66656148 is about 8164.3216497147. The cubic root of 66656148 is about 405.4588063647.

The spelling of 66656148 in words is "sixty-six million, six hundred fifty-six thousand, one hundred forty-eight".