159291998953 has 4 divisors (see below), whose sum is σ = 159298860868. Its totient is φ = 159285137040.

The previous prime is 159291998917. The next prime is 159291998959. The reversal of 159291998953 is 359899192951.

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

It can be written as a sum of positive squares in 2 ways, for example, as 89095086144 + 70196912809 = 298488^2 + 264947^2 .

It is a cyclic number.

It is not a de Polignac number, because 159291998953 - 2²¹ = 159289901801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159291998959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3396018 + ... + 3442603.

It is an arithmetic number, because the mean of its divisors is an integer number (39824715217).

Almost surely, 2^159291998953 is an apocalyptic number.

It is an amenable number.

159291998953 is a deficient number, since it is larger than the sum of its proper divisors (6861915).

159291998953 is an equidigital number, since it uses as much as digits as its factorization.

159291998953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6861914.

The product of its digits is 70858800, while the sum is 70.

It can be divided in two parts, 159291998 and 953, that added together give a palindrome (159292951).

The spelling of 159291998953 in words is "one hundred fifty-nine billion, two hundred ninety-one million, nine hundred ninety-eight thousand, nine hundred fifty-three".