3155872161 has 8 divisors (see below), whose sum is σ = 4531508800. Its totient is φ = 1942075152.

The previous prime is 3155872147. The next prime is 3155872183. The reversal of 3155872161 is 1612785513.

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

It is not a de Polignac number, because 3155872161 - 2¹⁰ = 3155871137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 80919799 = 3155872161 / (3 + 1 + 5 + 5 + 8 + 7 + 2 + 1 + 6 + 1).

It is not an unprimeable number, because it can be changed into a prime (3155872141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40459861 + ... + 40459938.

It is an arithmetic number, because the mean of its divisors is an integer number (566438600).

Almost surely, 2^3155872161 is an apocalyptic number.

It is an amenable number.

3155872161 is a deficient number, since it is larger than the sum of its proper divisors (1375636639).

3155872161 is a wasteful number, since it uses less digits than its factorization.

3155872161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80919815.

The product of its digits is 50400, while the sum is 39.

The square root of 3155872161 is about 56177.1498120010. The cubic root of 3155872161 is about 1466.8075412607.

The spelling of 3155872161 in words is "three billion, one hundred fifty-five million, eight hundred seventy-two thousand, one hundred sixty-one".