155318328 has 96 divisors (see below), whose sum is σ = 465903360. Its totient is φ = 46347840.

The previous prime is 155318321. The next prime is 155318329. The reversal of 155318328 is 823813551.

155318328 is a `hidden beast` number, since 1 + 553 + 1 + 83 + 28 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 155318292 and 155318301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155318321) 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, 51601 + ... + 54527.

It is an arithmetic number, because the mean of its divisors is an integer number (4853160).

Almost surely, 2^155318328 is an apocalyptic number.

155318328 is a gapful number since it is divisible by the number (18) 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 155318328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232951680).

155318328 is an abundant number, since it is smaller than the sum of its proper divisors (310585032).

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

155318328 is a wasteful number, since it uses less digits than its factorization.

155318328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3017 (or 3010 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 155318328 is about 12462.6774009440. The cubic root of 155318328 is about 537.5360169123.

It can be divided in two parts, 1553 and 18328, that added together give a square (19881 = 141²).

The spelling of 155318328 in words is "one hundred fifty-five million, three hundred eighteen thousand, three hundred twenty-eight".