2234115661 has 4 divisors (see below), whose sum is σ = 2237737212. Its totient is φ = 2230494112.

The previous prime is 2234115641. The next prime is 2234115671. The reversal of 2234115661 is 1665114322.

It is a happy number.

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 585349636 + 1648766025 = 24194^2 + 40605^2 .

It is a cyclic number.

It is not a de Polignac number, because 2234115661 - 2²⁵ = 2200561229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2234115641) 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, 1809850 + ... + 1811083.

It is an arithmetic number, because the mean of its divisors is an integer number (559434303).

Almost surely, 2^2234115661 is an apocalyptic number.

It is an amenable number.

2234115661 is a deficient number, since it is larger than the sum of its proper divisors (3621551).

2234115661 is an equidigital number, since it uses as much as digits as its factorization.

2234115661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3621550.

The product of its digits is 8640, while the sum is 31.

The square root of 2234115661 is about 47266.4327086358. The cubic root of 2234115661 is about 1307.2798013263.

Adding to 2234115661 its reverse (1665114322), we get a palindrome (3899229983).

The spelling of 2234115661 in words is "two billion, two hundred thirty-four million, one hundred fifteen thousand, six hundred sixty-one".