3155440155 has 32 divisors (see below), whose sum is σ = 5910686208. Its totient is φ = 1407302400.

The previous prime is 3155440153. The next prime is 3155440163. The reversal of 3155440155 is 5510445513.

It is not a de Polignac number, because 3155440155 - 2¹ = 3155440153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3155440153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 362181 + ... + 370790.

It is an arithmetic number, because the mean of its divisors is an integer number (184708944).

Almost surely, 2^3155440155 is an apocalyptic number.

3155440155 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3155440155 is a deficient number, since it is larger than the sum of its proper divisors (2755246053).

3155440155 is a wasteful number, since it uses less digits than its factorization.

3155440155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733027.

The product of its (nonzero) digits is 30000, while the sum is 33.

The square root of 3155440155 is about 56173.3046473145. The cubic root of 3155440155 is about 1466.7406079859.

Adding to 3155440155 its reverse (5510445513), we get a palindrome (8665885668).

The spelling of 3155440155 in words is "three billion, one hundred fifty-five million, four hundred forty thousand, one hundred fifty-five".