66455432 has 32 divisors (see below), whose sum is σ = 128044800. Its totient is φ = 32323200.

The previous prime is 66455429. The next prime is 66455437. The reversal of 66455432 is 23455466.

It is a happy number.

66455432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 66455392 and 66455401.

It is not an unprimeable number, because it can be changed into a prime (66455437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44132 + ... + 45612.

It is an arithmetic number, because the mean of its divisors is an integer number (4001400).

Almost surely, 2^66455432 is an apocalyptic number.

It is an amenable number.

66455432 is a deficient number, since it is larger than the sum of its proper divisors (61589368).

66455432 is a wasteful number, since it uses less digits than its factorization.

66455432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1637 (or 1633 counting only the distinct ones).

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

The square root of 66455432 is about 8152.0201177377. The cubic root of 66455432 is about 405.0514226227.

The spelling of 66455432 in words is "sixty-six million, four hundred fifty-five thousand, four hundred thirty-two".