2111616151 has 4 divisors (see below), whose sum is σ = 2119239592. Its totient is φ = 2103992712.

The previous prime is 2111616139. The next prime is 2111616193. The reversal of 2111616151 is 1516161112.

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 2111616151 - 2¹⁹ = 2111091863 is a prime.

It is a super-4 number, since 4×2111616151⁴ (a number of 38 digits) contains 4444 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 (2111616251) 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, 3811305 + ... + 3811858.

It is an arithmetic number, because the mean of its divisors is an integer number (529809898).

Almost surely, 2^2111616151 is an apocalyptic number.

2111616151 is a deficient number, since it is larger than the sum of its proper divisors (7623441).

2111616151 is an equidigital number, since it uses as much as digits as its factorization.

2111616151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7623440.

The product of its digits is 360, while the sum is 25.

The square root of 2111616151 is about 45952.3247616483. The cubic root of 2111616151 is about 1282.9359994578.

Adding to 2111616151 its reverse (1516161112), we get a palindrome (3627777263).

The spelling of 2111616151 in words is "two billion, one hundred eleven million, six hundred sixteen thousand, one hundred fifty-one".