66434504 has 32 divisors (see below), whose sum is σ = 132279480. Its totient is φ = 31171584.

The previous prime is 66434483. The next prime is 66434509. The reversal of 66434504 is 40543466.

It can be written as a sum of positive squares in 4 ways, for example, as 60684100 + 5750404 = 7790^2 + 2398^2 .

It is not an unprimeable number, because it can be changed into a prime (66434509) 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, 75314 + ... + 76190.

Almost surely, 2^66434504 is an apocalyptic number.

It is an amenable number.

66434504 is a deficient number, since it is larger than the sum of its proper divisors (65844976).

66434504 is a wasteful number, since it uses less digits than its factorization.

66434504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457 (or 1453 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 66434504 is about 8150.7364084480. The cubic root of 66434504 is about 405.0088988544.

The spelling of 66434504 in words is "sixty-six million, four hundred thirty-four thousand, five hundred four".