155522431430 has 16 divisors (see below), whose sum is σ = 280133331984. Its totient is φ = 62166093600.

The previous prime is 155522431411. The next prime is 155522431453. The reversal of 155522431430 is 34134225551.

It is a congruent 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, 5344637 + ... + 5373656.

It is an arithmetic number, because the mean of its divisors is an integer number (17508333249).

Almost surely, 2^155522431430 is an apocalyptic number.

155522431430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155522431430 is a deficient number, since it is larger than the sum of its proper divisors (124610900554).

155522431430 is a wasteful number, since it uses less digits than its factorization.

155522431430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10719751.

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 155522431430 its reverse (34134225551), we get a palindrome (189656656981).

The spelling of 155522431430 in words is "one hundred fifty-five billion, five hundred twenty-two million, four hundred thirty-one thousand, four hundred thirty".