155860012800 has 324 divisors, whose sum is σ = 576455890920. Its totient is φ = 40129044480.

The previous prime is 155860012753. The next prime is 155860012813. The reversal of 155860012800 is 8210068551.

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

It is a congruent number.

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, 1623747 + ... + 1717053.

Almost surely, 2^155860012800 is an apocalyptic number.

155860012800 is a gapful number since it is divisible by the number (10) 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 155860012800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288227945460).

155860012800 is an abundant number, since it is smaller than the sum of its proper divisors (420595878120).

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

155860012800 is a wasteful number, since it uses less digits than its factorization.

155860012800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93368 (or 93346 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 36.

The spelling of 155860012800 in words is "one hundred fifty-five billion, eight hundred sixty million, twelve thousand, eight hundred".