23144495445 has 16 divisors (see below), whose sum is σ = 41145769920. Its totient is φ = 12343730832.

The previous prime is 23144495443. The next prime is 23144495467. The reversal of 23144495445 is 54459444132.

23144495445 is a `hidden beast` number, since 23 + 1 + 44 + 49 + 544 + 5 = 666.

It is not a de Polignac number, because 23144495445 - 2¹ = 23144495443 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 23144495445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23144495443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85720219 + ... + 85720488.

It is an arithmetic number, because the mean of its divisors is an integer number (2571610620).

Almost surely, 2^23144495445 is an apocalyptic number.

It is an amenable number.

23144495445 is a deficient number, since it is larger than the sum of its proper divisors (18001274475).

23144495445 is a wasteful number, since it uses less digits than its factorization.

23144495445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171440721 (or 171440715 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 45.

The spelling of 23144495445 in words is "twenty-three billion, one hundred forty-four million, four hundred ninety-five thousand, four hundred forty-five".