1615132315161 has 12 divisors (see below), whose sum is σ = 2356067602980. Its totient is φ = 1066093936800.

The previous prime is 1615132315129. The next prime is 1615132315169.

1615132315161 is a `hidden beast` number, since 1 + 6 + 1 + 5 + 132 + 3 + 1 + 516 + 1 = 666.

1615132315161 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 782030705625 + 833101609536 = 884325^2 + 912744^2 .

It is not a de Polignac number, because 1615132315161 - 2⁵ = 1615132315129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1615132315169) 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 11 ways as a sum of consecutive naturals, for example, 888410706 + ... + 888412523.

It is an arithmetic number, because the mean of its divisors is an integer number (196338966915).

Almost surely, 2^{1615132315161} is an apocalyptic number.

It is an amenable number.

1615132315161 is a deficient number, since it is larger than the sum of its proper divisors (740935287819).

1615132315161 is a wasteful number, since it uses less digits than its factorization.

1615132315161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1776823336 (or 1776823333 counting only the distinct ones).

The product of its digits is 16200, while the sum is 36.

The spelling of 1615132315161 in words is "one trillion, six hundred fifteen billion, one hundred thirty-two million, three hundred fifteen thousand, one hundred sixty-one".