32166051865 has 8 divisors (see below), whose sum is σ = 38607330888. Its totient is φ = 25727462400.

The previous prime is 32166051859. The next prime is 32166051877. The reversal of 32166051865 is 56815066123.

It can be written as a sum of positive squares in 4 ways, for example, as 4934781504 + 27231270361 = 70248^2 + 165019^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 32166051865 - 2²⁹ = 31629180953 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 645982 + ... + 693991.

It is an arithmetic number, because the mean of its divisors is an integer number (4825916361).

Almost surely, 2^32166051865 is an apocalyptic number.

It is an amenable number.

32166051865 is a deficient number, since it is larger than the sum of its proper divisors (6441279023).

32166051865 is a wasteful number, since it uses less digits than its factorization.

32166051865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344779.

The product of its (nonzero) digits is 259200, while the sum is 43.

The spelling of 32166051865 in words is "thirty-two billion, one hundred sixty-six million, fifty-one thousand, eight hundred sixty-five".