12164442045 has 32 divisors (see below), whose sum is σ = 22272475392. Its totient is φ = 5553656832.

The previous prime is 12164442019. The next prime is 12164442053. The reversal of 12164442045 is 54024446121.

It is not a de Polignac number, because 12164442045 - 2⁹ = 12164441533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12164441997 and 12164442015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6229 + ... + 156101.

It is an arithmetic number, because the mean of its divisors is an integer number (696014856).

Almost surely, 2^12164442045 is an apocalyptic number.

12164442045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12164442045 is a deficient number, since it is larger than the sum of its proper divisors (10108033347).

12164442045 is a wasteful number, since it uses less digits than its factorization.

12164442045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150661.

The product of its (nonzero) digits is 30720, while the sum is 33.

Adding to 12164442045 its reverse (54024446121), we get a palindrome (66188888166).

The spelling of 12164442045 in words is "twelve billion, one hundred sixty-four million, four hundred forty-two thousand, forty-five".