159157641780 has 72 divisors (see below), whose sum is σ = 482991078024. Its totient is φ = 42423321600.

The previous prime is 159157641779. The next prime is 159157641803. The reversal of 159157641780 is 87146751951.

159157641780 is a `hidden beast` number, since 1 + 59 + 1 + 576 + 4 + 17 + 8 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2560157604 + 156597484176 = 50598^2 + 395724^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 216760 + ... + 604400.

It is an arithmetic number, because the mean of its divisors is an integer number (6708209417).

Almost surely, 2^159157641780 is an apocalyptic number.

159157641780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

159157641780 is an abundant number, since it is smaller than the sum of its proper divisors (323833436244).

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

159157641780 is a wasteful number, since it uses less digits than its factorization.

159157641780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389937 (or 389932 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 54.

The spelling of 159157641780 in words is "one hundred fifty-nine billion, one hundred fifty-seven million, six hundred forty-one thousand, seven hundred eighty".