155795394676320 has 576 divisors, whose sum is σ = 647661182313600. Its totient is φ = 33290705240064.

The previous prime is 155795394676297. The next prime is 155795394676349. The reversal of 155795394676320 is 23676493597551.

It is a happy number.

155795394676320 is a `hidden beast` number, since 1 + 5 + 5 + 7 + 9 + 539 + 4 + 6 + 7 + 63 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 22481734 + ... + 28583546.

It is an arithmetic number, because the mean of its divisors is an integer number (1124411774850).

Almost surely, 2^{155795394676320} is an apocalyptic number.

155795394676320 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 155795394676320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323830591156800).

155795394676320 is an abundant number, since it is smaller than the sum of its proper divisors (491865787637280).

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

155795394676320 is a wasteful number, since it uses less digits than its factorization.

155795394676320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6102007 (or 6101996 counting only the distinct ones).

The product of its (nonzero) digits is 1285956000, while the sum is 72.

The spelling of 155795394676320 in words is "one hundred fifty-five trillion, seven hundred ninety-five billion, three hundred ninety-four million, six hundred seventy-six thousand, three hundred twenty".