66256230 has 32 divisors (see below), whose sum is σ = 167385600. Its totient is φ = 16738272.

The previous prime is 66256193. The next prime is 66256241. The reversal of 66256230 is 3265266.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57550 + ... + 58689.

It is an arithmetic number, because the mean of its divisors is an integer number (5230800).

Almost surely, 2^66256230 is an apocalyptic number.

66256230 is an abundant number, since it is smaller than the sum of its proper divisors (101129370).

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

66256230 is a wasteful number, since it uses less digits than its factorization.

66256230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116268.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 66256230 is about 8139.7929949109. The cubic root of 66256230 is about 404.6462999405.

The spelling of 66256230 in words is "sixty-six million, two hundred fifty-six thousand, two hundred thirty".