159697233578780 has 24 divisors (see below), whose sum is σ = 335364695820000. Its totient is φ = 63878797183040.

The previous prime is 159697233578693. The next prime is 159697233578789. The reversal of 159697233578780 is 87875332796951.

It is a junction number, because it is equal to n+sod(n) for n = 159697233578695 and 159697233578704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159697233578789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8436950 + ... + 19763010.

It is an arithmetic number, because the mean of its divisors is an integer number (13973528992500).

Almost surely, 2^{159697233578780} is an apocalyptic number.

159697233578780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

159697233578780 is an abundant number, since it is smaller than the sum of its proper divisors (175667462241220).

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

159697233578780 is a wasteful number, since it uses less digits than its factorization.

159697233578780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12031069 (or 12031067 counting only the distinct ones).

The product of its (nonzero) digits is 4800902400, while the sum is 80.

The spelling of 159697233578780 in words is "one hundred fifty-nine trillion, six hundred ninety-seven billion, two hundred thirty-three million, five hundred seventy-eight thousand, seven hundred eighty".