32501650165 has 4 divisors (see below), whose sum is σ = 39001980204. Its totient is φ = 26001320128.

The previous prime is 32501650151. The next prime is 32501650169. The reversal of 32501650165 is 56105610523.

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 23723084529 + 8778565636 = 154023^2 + 93694^2 .

It is a cyclic number.

It is not a de Polignac number, because 32501650165 - 2⁵ = 32501650133 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

32501650165 is a modest number, since divided by 1650165 gives 325 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 32501650165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32501650169) 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, 3250165012 + ... + 3250165021.

It is an arithmetic number, because the mean of its divisors is an integer number (9750495051).

Almost surely, 2^32501650165 is an apocalyptic number.

It is an amenable number.

32501650165 is a deficient number, since it is larger than the sum of its proper divisors (6500330039).

32501650165 is an equidigital number, since it uses as much as digits as its factorization.

32501650165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6500330038.

The product of its (nonzero) digits is 27000, while the sum is 34.

The spelling of 32501650165 in words is "thirty-two billion, five hundred one million, six hundred fifty thousand, one hundred sixty-five".