2721116159 has 4 divisors (see below), whose sum is σ = 2721254016. Its totient is φ = 2720978304.

The previous prime is 2721116147. The next prime is 2721116173. The reversal of 2721116159 is 9516111272.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2721116159 - 2¹² = 2721112063 is a prime.

It is a super-3 number, since 3×2721116159³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2721116119) 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, 33119 + ... + 80864.

It is an arithmetic number, because the mean of its divisors is an integer number (680313504).

Almost surely, 2^2721116159 is an apocalyptic number.

2721116159 is a deficient number, since it is larger than the sum of its proper divisors (137857).

2721116159 is a wasteful number, since it uses less digits than its factorization.

2721116159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137856.

The product of its digits is 7560, while the sum is 35.

The square root of 2721116159 is about 52164.3188300202. The cubic root of 2721116159 is about 1396.0973211996.

The spelling of 2721116159 in words is "two billion, seven hundred twenty-one million, one hundred sixteen thousand, one hundred fifty-nine".