155331121432 has 16 divisors (see below), whose sum is σ = 291584917800. Its totient is φ = 77575143360.

The previous prime is 155331121357. The next prime is 155331121441. The reversal of 155331121432 is 234121133551.

It is a junction number, because it is equal to n+sod(n) for n = 155331121394 and 155331121403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11294869 + ... + 11308612.

Almost surely, 2^155331121432 is an apocalyptic number.

It is an amenable number.

155331121432 is a deficient number, since it is larger than the sum of its proper divisors (136253796368).

155331121432 is a wasteful number, since it uses less digits than its factorization.

155331121432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22604346 (or 22604342 counting only the distinct ones).

The product of its digits is 10800, while the sum is 31.

Adding to 155331121432 its reverse (234121133551), we get a palindrome (389452254983).

The spelling of 155331121432 in words is "one hundred fifty-five billion, three hundred thirty-one million, one hundred twenty-one thousand, four hundred thirty-two".