66245152 has 24 divisors (see below), whose sum is σ = 136092096. Its totient is φ = 31682112.

The previous prime is 66245147. The next prime is 66245159. The reversal of 66245152 is 25154266.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (66245159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44268 + ... + 45739.

It is an arithmetic number, because the mean of its divisors is an integer number (5670504).

Almost surely, 2^66245152 is an apocalyptic number.

It is an amenable number.

66245152 is an abundant number, since it is smaller than the sum of its proper divisors (69846944).

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

66245152 is a wasteful number, since it uses less digits than its factorization.

66245152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90040 (or 90032 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 66245152 is about 8139.1124823288. The cubic root of 66245152 is about 404.6237464811.

The spelling of 66245152 in words is "sixty-six million, two hundred forty-five thousand, one hundred fifty-two".