155202255432 has 144 divisors (see below), whose sum is σ = 489119576400. Its totient is φ = 44329602240.

The previous prime is 155202255379. The next prime is 155202255449. The reversal of 155202255432 is 234552202551.

155202255432 is a `hidden beast` number, since 1 + 5 + 52 + 0 + 22 + 554 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 17674419 + ... + 17683197.

It is an arithmetic number, because the mean of its divisors is an integer number (3396663725).

Almost surely, 2^155202255432 is an apocalyptic number.

155202255432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155202255432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244559788200).

155202255432 is an abundant number, since it is smaller than the sum of its proper divisors (333917320968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155202255432 is a wasteful number, since it uses less digits than its factorization.

155202255432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13816 (or 13802 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

Adding to 155202255432 its reverse (234552202551), we get a palindrome (389754457983).

The spelling of 155202255432 in words is "one hundred fifty-five billion, two hundred two million, two hundred fifty-five thousand, four hundred thirty-two".