64166006633 has 4 divisors (see below), whose sum is σ = 64627632720. Its totient is φ = 63704380548.

The previous prime is 64166006629. The next prime is 64166006687. The reversal of 64166006633 is 33660066146.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64166006633 - 2² = 64166006629 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64166002633) 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, 230812835 + ... + 230813112.

It is an arithmetic number, because the mean of its divisors is an integer number (16156908180).

Almost surely, 2^64166006633 is an apocalyptic number.

It is an amenable number.

64166006633 is a deficient number, since it is larger than the sum of its proper divisors (461626087).

64166006633 is a wasteful number, since it uses less digits than its factorization.

64166006633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461626086.

The product of its (nonzero) digits is 279936, while the sum is 41.

The spelling of 64166006633 in words is "sixty-four billion, one hundred sixty-six million, six thousand, six hundred thirty-three".