2263556161 has 4 divisors (see below), whose sum is σ = 2263705024. Its totient is φ = 2263407300.

The previous prime is 2263556159. The next prime is 2263556177. The reversal of 2263556161 is 1616553622.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2263556161 - 2¹ = 2263556159 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 2263556161.

It is not an unprimeable number, because it can be changed into a prime (2263556101) 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, 48645 + ... + 83026.

It is an arithmetic number, because the mean of its divisors is an integer number (565926256).

Almost surely, 2^2263556161 is an apocalyptic number.

It is an amenable number.

2263556161 is a deficient number, since it is larger than the sum of its proper divisors (148863).

2263556161 is a wasteful number, since it uses less digits than its factorization.

2263556161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148862.

The product of its digits is 64800, while the sum is 37.

The square root of 2263556161 is about 47576.8447987043. The cubic root of 2263556161 is about 1312.9970734134.

The spelling of 2263556161 in words is "two billion, two hundred sixty-three million, five hundred fifty-six thousand, one hundred sixty-one".