155254321100 has 18 divisors (see below), whose sum is σ = 336901877004. Its totient is φ = 62101728400.

The previous prime is 155254321093. The next prime is 155254321127. The reversal of 155254321100 is 1123452551.

155254321100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 776271506 + ... + 776271705.

Almost surely, 2^155254321100 is an apocalyptic number.

155254321100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155254321100 is an abundant number, since it is smaller than the sum of its proper divisors (181647555904).

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

155254321100 is a wasteful number, since it uses less digits than its factorization.

155254321100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552543225 (or 1552543218 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

Adding to 155254321100 its reverse (1123452551), we get a palindrome (156377773651).

The spelling of 155254321100 in words is "one hundred fifty-five billion, two hundred fifty-four million, three hundred twenty-one thousand, one hundred".