2320165155 has 128 divisors (see below), whose sum is σ = 4838123520. Its totient is φ = 921231360.

The previous prime is 2320165123. The next prime is 2320165157. The reversal of 2320165155 is 5515610232.

It is a happy number.

It is not a de Polignac number, because 2320165155 - 2⁵ = 2320165123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2320165157) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3784629 + ... + 3785241.

It is an arithmetic number, because the mean of its divisors is an integer number (37797840).

Almost surely, 2^2320165155 is an apocalyptic number.

2320165155 is an abundant number, since it is smaller than the sum of its proper divisors (2517958365).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2320165155 is a wasteful number, since it uses less digits than its factorization.

2320165155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 2320165155 is about 48168.0927066871. The cubic root of 2320165155 is about 1323.8526020335.

Adding to 2320165155 its reverse (5515610232), we get a palindrome (7835775387).

The spelling of 2320165155 in words is "two billion, three hundred twenty million, one hundred sixty-five thousand, one hundred fifty-five".