159091438765644 has 144 divisors (see below), whose sum is σ = 513607838155776. Its totient is φ = 40314586924800.

The previous prime is 159091438765639. The next prime is 159091438765657. The reversal of 159091438765644 is 446567834190951.

159091438765644 is a `hidden beast` number, since 1 + 5 + 9 + 0 + 91 + 438 + 7 + 65 + 6 + 44 = 666.

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, 699792372 + ... + 700019675.

It is an arithmetic number, because the mean of its divisors is an integer number (3566721098304).

Almost surely, 2^{159091438765644} is an apocalyptic number.

159091438765644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

159091438765644 is an abundant number, since it is smaller than the sum of its proper divisors (354516399390132).

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

159091438765644 is a wasteful number, since it uses less digits than its factorization.

159091438765644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1399812116 (or 1399812111 counting only the distinct ones).

The product of its (nonzero) digits is 783820800, while the sum is 72.

The spelling of 159091438765644 in words is "one hundred fifty-nine trillion, ninety-one billion, four hundred thirty-eight million, seven hundred sixty-five thousand, six hundred forty-four".