66025956 has 24 divisors (see below), whose sum is σ = 156673440. Its totient is φ = 21635392.

The previous prime is 66025951. The next prime is 66025957. The reversal of 66025956 is 65952066.

It is not an unprimeable number, because it can be changed into a prime (66025951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45921 + ... + 47336.

It is an arithmetic number, because the mean of its divisors is an integer number (6528060).

Almost surely, 2^66025956 is an apocalyptic number.

It is an amenable number.

66025956 is an abundant number, since it is smaller than the sum of its proper divisors (90647484).

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

66025956 is a wasteful number, since it uses less digits than its factorization.

66025956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93323 (or 93321 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 66025956 is about 8125.6357289753. The cubic root of 66025956 is about 404.1769721018.

The spelling of 66025956 in words is "sixty-six million, twenty-five thousand, nine hundred fifty-six".