15559027157 has 4 divisors (see below), whose sum is σ = 15890070336. Its totient is φ = 15227983980.

The previous prime is 15559027151. The next prime is 15559027219. The reversal of 15559027157 is 75172095551.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 15559027157 - 2⁶ = 15559027093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47), and also a Moran number because the ratio is a prime number: 331043131 = 15559027157 / (1 + 5 + 5 + 5 + 9 + 0 + 2 + 7 + 1 + 5 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15559027151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165521519 + ... + 165521612.

It is an arithmetic number, because the mean of its divisors is an integer number (3972517584).

Almost surely, 2^15559027157 is an apocalyptic number.

It is an amenable number.

15559027157 is a deficient number, since it is larger than the sum of its proper divisors (331043179).

15559027157 is an equidigital number, since it uses as much as digits as its factorization.

15559027157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331043178.

The product of its (nonzero) digits is 551250, while the sum is 47.

The spelling of 15559027157 in words is "fifteen billion, five hundred fifty-nine million, twenty-seven thousand, one hundred fifty-seven".