36531059161 has 9 divisors (see below), whose sum is σ = 38809801951. Its totient is φ = 34379115232.

The previous prime is 36531059141. The next prime is 36531059177. The reversal of 36531059161 is 16195013563.

The square root of 36531059161 is 191131.

It is a perfect power (a square), and thus also a powerful number.

36531059161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 28441136025 + 8089923136 = 168645^2 + 89944^2 .

It is a de Polignac number, because none of the positive numbers 2^k-36531059161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36531059141) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3243606 + ... + 3254848.

Almost surely, 2^36531059161 is an apocalyptic number.

36531059161 is the 191131-st square number.

36531059161 is the 95566-th centered octagonal number.

It is an amenable number.

36531059161 is a deficient number, since it is larger than the sum of its proper divisors (2278742790).

36531059161 is an frugal number, since it uses more digits than its factorization.

36531059161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22520 (or 11260 counting only the distinct ones).

The product of its (nonzero) digits is 72900, while the sum is 40.

The spelling of 36531059161 in words is "thirty-six billion, five hundred thirty-one million, fifty-nine thousand, one hundred sixty-one".