32186740161 has 4 divisors (see below), whose sum is σ = 42915653552. Its totient is φ = 21457826772.

The previous prime is 32186740127. The next prime is 32186740181. The reversal of 32186740161 is 16104768123.

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 not a de Polignac number, because 32186740161 - 2¹⁷ = 32186609089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32186740181) 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, 5364456691 + ... + 5364456696.

It is an arithmetic number, because the mean of its divisors is an integer number (10728913388).

Almost surely, 2^32186740161 is an apocalyptic number.

It is an amenable number.

32186740161 is a deficient number, since it is larger than the sum of its proper divisors (10728913391).

32186740161 is a wasteful number, since it uses less digits than its factorization.

32186740161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10728913390.

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 32186740161 in words is "thirty-two billion, one hundred eighty-six million, seven hundred forty thousand, one hundred sixty-one".