2211946765 has 16 divisors (see below), whose sum is σ = 3115516032. Its totient is φ = 1475769024.

The previous prime is 2211946753. The next prime is 2211946819. The reversal of 2211946765 is 5676491122.

It is a cyclic number.

It is not a de Polignac number, because 2211946765 - 2²¹ = 2209849613 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 852739 + ... + 855328.

It is an arithmetic number, because the mean of its divisors is an integer number (194719752).

Almost surely, 2^2211946765 is an apocalyptic number.

It is an amenable number.

2211946765 is a deficient number, since it is larger than the sum of its proper divisors (903569267).

2211946765 is a wasteful number, since it uses less digits than its factorization.

2211946765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1708116.

The product of its digits is 181440, while the sum is 43.

The square root of 2211946765 is about 47031.3381161965. The cubic root of 2211946765 is about 1302.9414195169.

The spelling of 2211946765 in words is "two billion, two hundred eleven million, nine hundred forty-six thousand, seven hundred sixty-five".