155324313200 has 240 divisors, whose sum is σ = 443772578880. Its totient is φ = 51115868160.

The previous prime is 155324313197. The next prime is 155324313239. The reversal of 155324313200 is 2313423551.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14042072 + ... + 14053128.

It is an arithmetic number, because the mean of its divisors is an integer number (1849052412).

Almost surely, 2^155324313200 is an apocalyptic number.

155324313200 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 155324313200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221886289440).

155324313200 is an abundant number, since it is smaller than the sum of its proper divisors (288448265680).

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

155324313200 is a wasteful number, since it uses less digits than its factorization.

155324313200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11284 (or 11273 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 155324313200 its reverse (2313423551), we get a palindrome (157637736751).

The spelling of 155324313200 in words is "one hundred fifty-five billion, three hundred twenty-four million, three hundred thirteen thousand, two hundred".