155040431526115 has 8 divisors (see below), whose sum is σ = 188597127665088. Its totient is φ = 122333271998400.

The previous prime is 155040431525981. The next prime is 155040431526193. The reversal of 155040431526115 is 511625134040551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-155040431526115 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212384152411 + ... + 212384153140.

It is an arithmetic number, because the mean of its divisors is an integer number (23574640958136).

Almost surely, 2^{155040431526115} is an apocalyptic number.

155040431526115 is a deficient number, since it is larger than the sum of its proper divisors (33556696138973).

155040431526115 is an equidigital number, since it uses as much as digits as its factorization.

155040431526115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424768305629.

The product of its (nonzero) digits is 360000, while the sum is 43.

Adding to 155040431526115 its reverse (511625134040551), we get a palindrome (666665565566666).

The spelling of 155040431526115 in words is "one hundred fifty-five trillion, forty billion, four hundred thirty-one million, five hundred twenty-six thousand, one hundred fifteen".