159453506971 has 8 divisors (see below), whose sum is σ = 174450579264. Its totient is φ = 144539984520.

The previous prime is 159453506909. The next prime is 159453506977. The reversal of 159453506971 is 179605354951.

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

It is a cyclic number.

It is not a de Polignac number, because 159453506971 - 2¹³ = 159453498779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159453506977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20883465 + ... + 20891098.

It is an arithmetic number, because the mean of its divisors is an integer number (21806322408).

Almost surely, 2^159453506971 is an apocalyptic number.

159453506971 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

159453506971 is a deficient number, since it is larger than the sum of its proper divisors (14997072293).

159453506971 is a wasteful number, since it uses less digits than its factorization.

159453506971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41774921.

The product of its (nonzero) digits is 5103000, while the sum is 55.

The spelling of 159453506971 in words is "one hundred fifty-nine billion, four hundred fifty-three million, five hundred six thousand, nine hundred seventy-one".