159530665444 has 24 divisors (see below), whose sum is σ = 283430891520. Its totient is φ = 78559580736.

The previous prime is 159530665433. The next prime is 159530665453. The reversal of 159530665444 is 444566035951.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 159530665391 and 159530665400.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1076524 + ... + 1215715.

It is an arithmetic number, because the mean of its divisors is an integer number (11809620480).

Almost surely, 2^159530665444 is an apocalyptic number.

It is an amenable number.

159530665444 is a deficient number, since it is larger than the sum of its proper divisors (123900226076).

159530665444 is a wasteful number, since it uses less digits than its factorization.

159530665444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2292507 (or 2292505 counting only the distinct ones).

The product of its (nonzero) digits is 7776000, while the sum is 52.

The spelling of 159530665444 in words is "one hundred fifty-nine billion, five hundred thirty million, six hundred sixty-five thousand, four hundred forty-four".