66434104 has 32 divisors (see below), whose sum is σ = 139209840. Its totient is φ = 29459200.

The previous prime is 66434033. The next prime is 66434107. The reversal of 66434104 is 40143466.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66434107) 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, 5599 + ... + 12814.

Almost surely, 2^66434104 is an apocalyptic number.

It is an amenable number.

66434104 is an abundant number, since it is smaller than the sum of its proper divisors (72775736).

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

66434104 is a wasteful number, since it uses less digits than its factorization.

66434104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18471 (or 18467 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 66434104 is about 8150.7118707509. The cubic root of 66434104 is about 405.0080860043.

The spelling of 66434104 in words is "sixty-six million, four hundred thirty-four thousand, one hundred four".