159999723974 has 8 divisors (see below), whose sum is σ = 250434350640. Its totient is φ = 76521607096.

The previous prime is 159999723953. The next prime is 159999723991. The reversal of 159999723974 is 479327999951.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1739127389 + ... + 1739127480.

It is an arithmetic number, because the mean of its divisors is an integer number (31304293830).

Almost surely, 2^159999723974 is an apocalyptic number.

159999723974 is a deficient number, since it is larger than the sum of its proper divisors (90434626666).

159999723974 is a wasteful number, since it uses less digits than its factorization.

159999723974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3478254894.

The product of its digits is 347208120, while the sum is 74.

The spelling of 159999723974 in words is "one hundred fifty-nine billion, nine hundred ninety-nine million, seven hundred twenty-three thousand, nine hundred seventy-four".