157799808737280 has 1344 divisors, whose sum is σ = 589996511290368. Its totient is φ = 40414457364480.

The previous prime is 157799808737269. The next prime is 157799808737297. The reversal of 157799808737280 is 82737808997751.

157799808737280 is a `hidden beast` number, since 1 + 5 + 7 + 7 + 9 + 98 + 0 + 87 + 372 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a self number, because there is not a number n which added to its sum of digits gives 157799808737280.

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, 42271578294 + ... + 42271582026.

It is an arithmetic number, because the mean of its divisors is an integer number (438985499472).

Almost surely, 2^{157799808737280} is an apocalyptic number.

157799808737280 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 157799808737280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294998255645184).

157799808737280 is an abundant number, since it is smaller than the sum of its proper divisors (432196702553088).

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

157799808737280 is an equidigital number, since it uses as much as digits as its factorization.

157799808737280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3947 (or 3911 counting only the distinct ones).

The product of its (nonzero) digits is 2987228160, while the sum is 81.

The spelling of 157799808737280 in words is "one hundred fifty-seven trillion, seven hundred ninety-nine billion, eight hundred eight million, seven hundred thirty-seven thousand, two hundred eighty".