165615010461 has 6 divisors (see below), whose sum is σ = 239221681790. Its totient is φ = 110410006968.

The previous prime is 165615010439. The next prime is 165615010471. The reversal of 165615010461 is 164010516561.

165615010461 is a `hidden beast` number, since 1 + 6 + 561 + 50 + 1 + 0 + 46 + 1 = 666.

165615010461 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., 142000848900 + 23614161561 = 376830^2 + 153669^2 .

It is not a de Polignac number, because 165615010461 - 2¹⁰ = 165615009437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165615010471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9200833906 + ... + 9200833923.

Almost surely, 2^165615010461 is an apocalyptic number.

It is an amenable number.

165615010461 is a deficient number, since it is larger than the sum of its proper divisors (73606671329).

165615010461 is a wasteful number, since it uses less digits than its factorization.

165615010461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18401667835 (or 18401667832 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The spelling of 165615010461 in words is "one hundred sixty-five billion, six hundred fifteen million, ten thousand, four hundred sixty-one".