155024224000 has 216 divisors, whose sum is σ = 410262220368. Its totient is φ = 58358579200.

The previous prime is 155024223979. The next prime is 155024224001. The reversal of 155024224000 is 422420551.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155024224001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9239619 + ... + 9256381.

Almost surely, 2^155024224000 is an apocalyptic number.

155024224000 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 155024224000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205131110184).

155024224000 is an abundant number, since it is smaller than the sum of its proper divisors (255237996368).

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

155024224000 is an equidigital number, since it uses as much as digits as its factorization.

155024224000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16828 (or 16787 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

Adding to 155024224000 its reverse (422420551), we get a palindrome (155446644551).

The spelling of 155024224000 in words is "one hundred fifty-five billion, twenty-four million, two hundred twenty-four thousand".