152566640162165 has 4 divisors (see below), whose sum is σ = 183079968194604. Its totient is φ = 122053312129728.

The previous prime is 152566640162107. The next prime is 152566640162243. The reversal of 152566640162165 is 561261046665251.

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 23162524060516 + 129404116101649 = 4812746^2 + 11375593^2 .

It is a cyclic number.

It is not a de Polignac number, because 152566640162165 - 2⁸ = 152566640161909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 152566640162165.

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, 15256664016212 + ... + 15256664016221.

It is an arithmetic number, because the mean of its divisors is an integer number (45769992048651).

Almost surely, 2^{152566640162165} is an apocalyptic number.

It is an amenable number.

152566640162165 is a deficient number, since it is larger than the sum of its proper divisors (30513328032439).

152566640162165 is an equidigital number, since it uses as much as digits as its factorization.

152566640162165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30513328032438.

The product of its (nonzero) digits is 15552000, while the sum is 56.

The spelling of 152566640162165 in words is "one hundred fifty-two trillion, five hundred sixty-six billion, six hundred forty million, one hundred sixty-two thousand, one hundred sixty-five".