162661500325 has 6 divisors (see below), whose sum is σ = 201700260434. Its totient is φ = 130129200240.

The previous prime is 162661500247. The next prime is 162661500437. The reversal of 162661500325 is 523005166261.

It can be written as a sum of positive squares in 3 ways, for example, as 9904031361 + 152757468964 = 99519^2 + 390842^2 .

It is not a de Polignac number, because 162661500325 - 2²⁷ = 162527282597 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 5 ways as a sum of consecutive naturals, for example, 3253229982 + ... + 3253230031.

Almost surely, 2^162661500325 is an apocalyptic number.

It is an amenable number.

162661500325 is a deficient number, since it is larger than the sum of its proper divisors (39038760109).

162661500325 is an equidigital number, since it uses as much as digits as its factorization.

162661500325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6506460023 (or 6506460018 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

Adding to 162661500325 its reverse (523005166261), we get a palindrome (685666666586).

The spelling of 162661500325 in words is "one hundred sixty-two billion, six hundred sixty-one million, five hundred thousand, three hundred twenty-five".