155579338559 has 4 divisors (see below), whose sum is σ = 155580321600. Its totient is φ = 155578355520.

The previous prime is 155579338547. The next prime is 155579338589. The reversal of 155579338559 is 955833975551.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 155579338559 - 2⁴ = 155579338543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155579338495 and 155579338504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155579338589) 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, 194159 + ... + 590640.

It is an arithmetic number, because the mean of its divisors is an integer number (38895080400).

Almost surely, 2^155579338559 is an apocalyptic number.

155579338559 is a deficient number, since it is larger than the sum of its proper divisors (983041).

155579338559 is an equidigital number, since it uses as much as digits as its factorization.

155579338559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983040.

The product of its digits is 127575000, while the sum is 65.

The spelling of 155579338559 in words is "one hundred fifty-five billion, five hundred seventy-nine million, three hundred thirty-eight thousand, five hundred fifty-nine".