32664347057 has 4 divisors (see below), whose sum is σ = 33111803940. Its totient is φ = 32216890176.

The previous prime is 32664347047. The next prime is 32664347071. The reversal of 32664347057 is 75074346623.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75074346623 = 10631 ⋅7061833.

It can be written as a sum of positive squares in 2 ways, for example, as 20897304481 + 11767042576 = 144559^2 + 108476^2 .

It is a cyclic number.

It is not a de Polignac number, because 32664347057 - 2³⁴ = 15484477873 is a prime.

It is a super-2 number, since 2×32664347057² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32664347017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223728332 + ... + 223728477.

It is an arithmetic number, because the mean of its divisors is an integer number (8277950985).

Almost surely, 2^32664347057 is an apocalyptic number.

It is an amenable number.

32664347057 is a deficient number, since it is larger than the sum of its proper divisors (447456883).

32664347057 is an equidigital number, since it uses as much as digits as its factorization.

32664347057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447456882.

The product of its (nonzero) digits is 2540160, while the sum is 47.

The spelling of 32664347057 in words is "thirty-two billion, six hundred sixty-four million, three hundred forty-seven thousand, fifty-seven".