155241544431 has 8 divisors (see below), whose sum is σ = 207015558400. Its totient is φ = 103480946712.

The previous prime is 155241544417. The next prime is 155241544463. The reversal of 155241544431 is 134445142551.

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

It is not a de Polignac number, because 155241544431 - 2¹⁷ = 155241413359 is a prime.

It is a super-2 number, since 2×155241544431² (a number of 23 digits) contains 22 as substring.

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 155241544431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155241544831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3327031 + ... + 3373368.

It is an arithmetic number, because the mean of its divisors is an integer number (25876944800).

Almost surely, 2^155241544431 is an apocalyptic number.

155241544431 is a deficient number, since it is larger than the sum of its proper divisors (51774013969).

155241544431 is an equidigital number, since it uses as much as digits as its factorization.

155241544431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6708125.

The product of its digits is 192000, while the sum is 39.

Adding to 155241544431 its reverse (134445142551), we get a palindrome (289686686982).

The spelling of 155241544431 in words is "one hundred fifty-five billion, two hundred forty-one million, five hundred forty-four thousand, four hundred thirty-one".