155012254400000 has 240 divisors, whose sum is σ = 389593821399552. Its totient is φ = 61609866240000.

The previous prime is 155012254399957. The next prime is 155012254400041. The reversal of 155012254400000 is 4452210551.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 250891457 + ... + 251508543.

Almost surely, 2^{155012254400000} is an apocalyptic number.

155012254400000 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 155012254400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194796910699776).

155012254400000 is an abundant number, since it is smaller than the sum of its proper divisors (234581566999552).

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

155012254400000 is an frugal number, since it uses more digits than its factorization.

155012254400000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617287 (or 617251 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

The spelling of 155012254400000 in words is "one hundred fifty-five trillion, twelve billion, two hundred fifty-four million, four hundred thousand".