155875000320 has 900 divisors, whose sum is σ = 609470132040. Its totient is φ = 38093193216.

The previous prime is 155875000297. The next prime is 155875000331. The reversal of 155875000320 is 23000578551.

155875000320 is a `hidden beast` number, since 1 + 5 + 587 + 50 + 0 + 0 + 3 + 20 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1121402811 + ... + 1121402949.

Almost surely, 2^155875000320 is an apocalyptic number.

155875000320 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 155875000320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (304735066020).

155875000320 is an abundant number, since it is smaller than the sum of its proper divisors (453595131720).

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

155875000320 is an equidigital number, since it uses as much as digits as its factorization.

155875000320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

Adding to 155875000320 its reverse (23000578551), we get a palindrome (178875578871).

The spelling of 155875000320 in words is "one hundred fifty-five billion, eight hundred seventy-five million, three hundred twenty", and thus it is an aban number.