155149507900 has 18 divisors (see below), whose sum is σ = 336674432360. Its totient is φ = 62059803120.

The previous prime is 155149507879. The next prime is 155149507939. The reversal of 155149507900 is 9705941551.

155149507900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×155149507900² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 775747440 + ... + 775747639.

Almost surely, 2^155149507900 is an apocalyptic number.

155149507900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155149507900 is an abundant number, since it is smaller than the sum of its proper divisors (181524924460).

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

155149507900 is a wasteful number, since it uses less digits than its factorization.

155149507900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1551495093 (or 1551495086 counting only the distinct ones).

The product of its (nonzero) digits is 283500, while the sum is 46.

The spelling of 155149507900 in words is "one hundred fifty-five billion, one hundred forty-nine million, five hundred seven thousand, nine hundred".