2267161651 has 4 divisors (see below), whose sum is σ = 2269571904. Its totient is φ = 2264751400.

The previous prime is 2267161639. The next prime is 2267161669. The reversal of 2267161651 is 1561617622.

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 2267161651 - 2⁵ = 2267161619 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2267161651.

It is not an unprimeable number, because it can be changed into a prime (2267161151) 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, 1203715 + ... + 1205596.

It is an arithmetic number, because the mean of its divisors is an integer number (567392976).

Almost surely, 2^2267161651 is an apocalyptic number.

2267161651 is a deficient number, since it is larger than the sum of its proper divisors (2410253).

2267161651 is an equidigital number, since it uses as much as digits as its factorization.

2267161651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2410252.

The product of its digits is 30240, while the sum is 37.

The square root of 2267161651 is about 47614.7209484630. The cubic root of 2267161651 is about 1313.6938364120.

The spelling of 2267161651 in words is "two billion, two hundred sixty-seven million, one hundred sixty-one thousand, six hundred fifty-one".