3161553731145 has 80 divisors (see below), whose sum is σ = 5692008658512. Its totient is φ = 1678848975360.

The previous prime is 3161553731117. The next prime is 3161553731153. The reversal of 3161553731145 is 5411373551613.

3161553731145 is a `hidden beast` number, since 3 + 1 + 61 + 5 + 537 + 3 + 11 + 45 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 500312899584 + 2661240831561 = 707328^2 + 1631331^2 .

It is not a de Polignac number, because 3161553731145 - 2²² = 3161549536841 is a prime.

It is a super-2 number, since 2×3161553731145² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 3161553731145.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 92585775 + ... + 92619915.

Almost surely, 2^{3161553731145} is an apocalyptic number.

It is an amenable number.

3161553731145 is a deficient number, since it is larger than the sum of its proper divisors (2530454927367).

3161553731145 is a wasteful number, since it uses less digits than its factorization.

3161553731145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35144 (or 35135 counting only the distinct ones).

The product of its digits is 567000, while the sum is 45.

The spelling of 3161553731145 in words is "three trillion, one hundred sixty-one billion, five hundred fifty-three million, seven hundred thirty-one thousand, one hundred forty-five".