66435452 has 12 divisors (see below), whose sum is σ = 116335296. Its totient is φ = 33196800.

The previous prime is 66435451. The next prime is 66435469. The reversal of 66435452 is 25453466.

It is a happy number.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66435451) 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, 3548 + ... + 12060.

It is an arithmetic number, because the mean of its divisors is an integer number (9694608).

Almost surely, 2^66435452 is an apocalyptic number.

It is an amenable number.

66435452 is a deficient number, since it is larger than the sum of its proper divisors (49899844).

66435452 is a wasteful number, since it uses less digits than its factorization.

66435452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10468 (or 10466 counting only the distinct ones).

The product of its digits is 86400, while the sum is 35.

The square root of 66435452 is about 8150.7945624951. The cubic root of 66435452 is about 405.0108252962.

The spelling of 66435452 in words is "sixty-six million, four hundred thirty-five thousand, four hundred fifty-two".