155956320 has 192 divisors, whose sum is σ = 588047040. Its totient is φ = 38375424.

The previous prime is 155956303. The next prime is 155956327. The reversal of 155956320 is 23659551.

155956320 is a `hidden beast` number, since 1 + 5 + 595 + 63 + 2 + 0 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155956327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54772 + ... + 57548.

It is an arithmetic number, because the mean of its divisors is an integer number (3062745).

Almost surely, 2^155956320 is an apocalyptic number.

155956320 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 155956320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294023520).

155956320 is an abundant number, since it is smaller than the sum of its proper divisors (432090720).

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

155956320 is a wasteful number, since it uses less digits than its factorization.

155956320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2814 (or 2800 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 36.

The square root of 155956320 is about 12488.2472749381. The cubic root of 155956320 is about 538.2710132009.

The spelling of 155956320 in words is "one hundred fifty-five million, nine hundred fifty-six thousand, three hundred twenty".