159844746890 has 48 divisors (see below), whose sum is σ = 306080741304. Its totient is φ = 60090240000.

The previous prime is 159844746877. The next prime is 159844746917. The reversal of 159844746890 is 98647448951.

It can be written as a sum of positive squares in 12 ways, for example, as 71314100209 + 88530646681 = 267047^2 + 297541^2 .

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, 1986440 + ... + 2065340.

Almost surely, 2^159844746890 is an apocalyptic number.

159844746890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

159844746890 is a deficient number, since it is larger than the sum of its proper divisors (146235994414).

159844746890 is a wasteful number, since it uses less digits than its factorization.

159844746890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79643 (or 79626 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 65.

The spelling of 159844746890 in words is "one hundred fifty-nine billion, eight hundred forty-four million, seven hundred forty-six thousand, eight hundred ninety".