155354320000 has 320 divisors, whose sum is σ = 425681863200. Its totient is φ = 56453760000.

The previous prime is 155354319979. The next prime is 155354320027. The reversal of 155354320000 is 23453551.

It is a tau number, because it is divible by the number of its divisors (320).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 106479271 + ... + 106480729.

Almost surely, 2^155354320000 is an apocalyptic number.

155354320000 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 155354320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212840931600).

155354320000 is an abundant number, since it is smaller than the sum of its proper divisors (270327543200).

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

155354320000 is an frugal number, since it uses more digits than its factorization.

155354320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526 (or 1477 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

Adding to 155354320000 its reverse (23453551), we get a palindrome (155377773551).

The spelling of 155354320000 in words is "one hundred fifty-five billion, three hundred fifty-four million, three hundred twenty thousand".