32077766165 has 4 divisors (see below), whose sum is σ = 38493319404. Its totient is φ = 25662212928.

The previous prime is 32077766153. The next prime is 32077766179. The reversal of 32077766165 is 56166777023.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25007310769 + 7070455396 = 158137^2 + 84086^2 .

It is a cyclic number.

It is not a de Polignac number, because 32077766165 - 2¹² = 32077762069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3207776612 + ... + 3207776621.

It is an arithmetic number, because the mean of its divisors is an integer number (9623329851).

Almost surely, 2^32077766165 is an apocalyptic number.

It is an amenable number.

32077766165 is a deficient number, since it is larger than the sum of its proper divisors (6415553239).

32077766165 is an equidigital number, since it uses as much as digits as its factorization.

32077766165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6415553238.

The product of its (nonzero) digits is 2222640, while the sum is 50.

The spelling of 32077766165 in words is "thirty-two billion, seventy-seven million, seven hundred sixty-six thousand, one hundred sixty-five".