159605969490 has 96 divisors (see below), whose sum is σ = 452963736576. Its totient is φ = 38669863680.

The previous prime is 159605969489. The next prime is 159605969503. The reversal of 159605969490 is 94969506951.

159605969490 is a `hidden beast` number, since 1 + 5 + 96 + 0 + 59 + 6 + 9 + 490 = 666.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1689487 + ... + 1781453.

It is an arithmetic number, because the mean of its divisors is an integer number (4718372256).

Almost surely, 2^159605969490 is an apocalyptic number.

159605969490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 159605969490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226481868288).

159605969490 is an abundant number, since it is smaller than the sum of its proper divisors (293357767086).

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

159605969490 is a wasteful number, since it uses less digits than its factorization.

159605969490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93744 (or 93741 counting only the distinct ones).

The product of its (nonzero) digits is 23619600, while the sum is 63.

The spelling of 159605969490 in words is "one hundred fifty-nine billion, six hundred five million, nine hundred sixty-nine thousand, four hundred ninety".