15711845345 has 24 divisors (see below), whose sum is σ = 22017882024. Its totient is φ = 10731872256.

The previous prime is 15711845321. The next prime is 15711845363. The reversal of 15711845345 is 54354811751.

It can be written as a sum of positive squares in 4 ways, for example, as 4139249569 + 11572595776 = 64337^2 + 107576^2 .

It is not a de Polignac number, because 15711845345 - 2¹⁰ = 15711844321 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 15711845296 and 15711845305.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61802 + ... + 187731.

It is an arithmetic number, because the mean of its divisors is an integer number (917411751).

Almost surely, 2^15711845345 is an apocalyptic number.

It is an amenable number.

15711845345 is a deficient number, since it is larger than the sum of its proper divisors (6306036679).

15711845345 is a wasteful number, since it uses less digits than its factorization.

15711845345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249809 (or 249802 counting only the distinct ones).

The product of its digits is 336000, while the sum is 44.

The spelling of 15711845345 in words is "fifteen billion, seven hundred eleven million, eight hundred forty-five thousand, three hundred forty-five".