155124431000 has 128 divisors (see below), whose sum is σ = 452560642560. Its totient is φ = 48350448000.

The previous prime is 155124430997. The next prime is 155124431071. The reversal of 155124431000 is 134421551.

It is a super-2 number, since 2×155124431000² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 930302 + ... + 1084301.

It is an arithmetic number, because the mean of its divisors is an integer number (3535630020).

Almost surely, 2^155124431000 is an apocalyptic number.

155124431000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155124431000 is an abundant number, since it is smaller than the sum of its proper divisors (297436211560).

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

155124431000 is a wasteful number, since it uses less digits than its factorization.

155124431000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2014642 (or 2014628 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 155124431000 its reverse (134421551), we get a palindrome (155258852551).

The spelling of 155124431000 in words is "one hundred fifty-five billion, one hundred twenty-four million, four hundred thirty-one thousand".