36561012157165 has 8 divisors (see below), whose sum is σ = 43873272775800. Its totient is φ = 29248770934272.

The previous prime is 36561012157151. The next prime is 36561012157181. The reversal of 36561012157165 is 56175121016563.

It can be written as a sum of positive squares in 4 ways, for example, as 369369786564 + 36191642370601 = 607758^2 + 6015949^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 36561012157165 - 2²³ = 36561003768557 is a prime.

It is a congruent 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, 316840 + ... + 8557009.

It is an arithmetic number, because the mean of its divisors is an integer number (5484159096975).

Almost surely, 2^{36561012157165} is an apocalyptic number.

It is an amenable number.

36561012157165 is a deficient number, since it is larger than the sum of its proper divisors (7312260618635).

36561012157165 is an equidigital number, since it uses as much as digits as its factorization.

36561012157165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9697871.

The product of its (nonzero) digits is 1134000, while the sum is 49.

The spelling of 36561012157165 in words is "thirty-six trillion, five hundred sixty-one billion, twelve million, one hundred fifty-seven thousand, one hundred sixty-five".