15345205555023 has 6 divisors (see below), whose sum is σ = 22165296912824. Its totient is φ = 10230137036676.

The previous prime is 15345205555013. The next prime is 15345205555033. The reversal of 15345205555023 is 32055550254351.

It is a happy number.

15345205555023 is a `hidden beast` number, since 1 + 5 + 3 + 4 + 5 + 20 + 55 + 550 + 23 = 666.

It is an interprime number because it is at equal distance from previous prime (15345205555013) and next prime (15345205555033).

It is not a de Polignac number, because 15345205555023 - 2⁴ = 15345205555007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15345205555023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15345205555013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 852511419715 + ... + 852511419732.

Almost surely, 2^{15345205555023} is an apocalyptic number.

15345205555023 is a deficient number, since it is larger than the sum of its proper divisors (6820091357801).

15345205555023 is a wasteful number, since it uses less digits than its factorization.

15345205555023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1705022839453 (or 1705022839450 counting only the distinct ones).

The product of its (nonzero) digits is 2250000, while the sum is 45.

The spelling of 15345205555023 in words is "fifteen trillion, three hundred forty-five billion, two hundred five million, five hundred fifty-five thousand, twenty-three".