155328120 has 192 divisors, whose sum is σ = 525657600. Its totient is φ = 39755520.

The previous prime is 155328077. The next prime is 155328139. The reversal of 155328120 is 21823551.

It is a happy number.

155328120 is a `hidden beast` number, since 1 + 5 + 532 + 8 + 120 = 666.

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, 1507989 + ... + 1508091.

It is an arithmetic number, because the mean of its divisors is an integer number (2737800).

Almost surely, 2^155328120 is an apocalyptic number.

155328120 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 155328120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262828800).

155328120 is an abundant number, since it is smaller than the sum of its proper divisors (370329480).

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

155328120 is a wasteful number, since it uses less digits than its factorization.

155328120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 243 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 155328120 is about 12463.0702477359. The cubic root of 155328120 is about 537.5473129435.

The spelling of 155328120 in words is "one hundred fifty-five million, three hundred twenty-eight thousand, one hundred twenty".