2255161623 has 32 divisors (see below), whose sum is σ = 3718498560. Its totient is φ = 1195223040.

The previous prime is 2255161621. The next prime is 2255161631. The reversal of 2255161623 is 3261615522.

It is not a de Polignac number, because 2255161623 - 2¹ = 2255161621 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2255161621) 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, 130186 + ... + 146487.

It is an arithmetic number, because the mean of its divisors is an integer number (116203080).

Almost surely, 2^2255161623 is an apocalyptic number.

2255161623 is a deficient number, since it is larger than the sum of its proper divisors (1463336937).

2255161623 is a wasteful number, since it uses less digits than its factorization.

2255161623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276719.

The product of its digits is 21600, while the sum is 33.

The square root of 2255161623 is about 47488.5420180489. The cubic root of 2255161623 is about 1311.3719525204.

It can be divided in two parts, 2255 and 161623, that added together give a triangular number (163878 = T₅₇₂).

The spelling of 2255161623 in words is "two billion, two hundred fifty-five million, one hundred sixty-one thousand, six hundred twenty-three".