159999999998 has 4 divisors (see below), whose sum is σ = 240000000000. Its totient is φ = 79999999998.

The previous prime is 159999999983. The next prime is 160000000003. The reversal of 159999999998 is 899999999951.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 159999999998.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39999999998 + ... + 40000000001.

It is an arithmetic number, because the mean of its divisors is an integer number (60000000000).

Almost surely, 2^159999999998 is an apocalyptic number.

159999999998 is a deficient number, since it is larger than the sum of its proper divisors (80000000002).

159999999998 is an equidigital number, since it uses as much as digits as its factorization.

159999999998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80000000001.

The product of its digits is 15496819560, while the sum is 95.

The spelling of 159999999998 in words is "one hundred fifty-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-eight".