66433164 has 24 divisors (see below), whose sum is σ = 177155328. Its totient is φ = 18980880.

The previous prime is 66433163. The next prime is 66433183. The reversal of 66433164 is 46133466.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (66433163) 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, 395352 + ... + 395519.

It is an arithmetic number, because the mean of its divisors is an integer number (7381472).

Almost surely, 2^66433164 is an apocalyptic number.

It is an amenable number.

66433164 is an abundant number, since it is smaller than the sum of its proper divisors (110722164).

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

66433164 is a wasteful number, since it uses less digits than its factorization.

66433164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790885 (or 790883 counting only the distinct ones).

The product of its digits is 31104, while the sum is 33.

The square root of 66433164 is about 8150.6542068720. The cubic root of 66433164 is about 405.0061757936.

The spelling of 66433164 in words is "sixty-six million, four hundred thirty-three thousand, one hundred sixty-four".