2155423023104 has 60 divisors (see below), whose sum is σ = 4642308370644. Its totient is φ = 994810527744.

The previous prime is 2155423023067. The next prime is 2155423023113. The reversal of 2155423023104 is 4013203245512.

It can be written as a sum of positive squares in 2 ways, for example, as 1376510869504 + 778912153600 = 1173248^2 + 882560^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4846877 + ... + 5272860.

Almost surely, 2^{2155423023104} is an apocalyptic number.

It is an amenable number.

2155423023104 is an abundant number, since it is smaller than the sum of its proper divisors (2486885347540).

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

2155423023104 is an equidigital number, since it uses as much as digits as its factorization.

2155423023104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10119778 (or 10119752 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 2155423023104 its reverse (4013203245512), we get a palindrome (6168626268616).

The spelling of 2155423023104 in words is "two trillion, one hundred fifty-five billion, four hundred twenty-three million, twenty-three thousand, one hundred four".