2265698266 has 16 divisors (see below), whose sum is σ = 3665970504. Its totient is φ = 1043993664.

The previous prime is 2265698231. The next prime is 2265698269. The reversal of 2265698266 is 6628965622.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 143161225 + 2122537041 = 11965^2 + 46071^2 .

It is not an unprimeable number, because it can be changed into a prime (2265698269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55141 + ... + 87016.

Almost surely, 2^2265698266 is an apocalyptic number.

2265698266 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2265698266 is a deficient number, since it is larger than the sum of its proper divisors (1400272238).

2265698266 is a wasteful number, since it uses less digits than its factorization.

2265698266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142785.

The product of its digits is 3732480, while the sum is 52.

The square root of 2265698266 is about 47599.3515291963. The cubic root of 2265698266 is about 1313.4111255566.

The spelling of 2265698266 in words is "two billion, two hundred sixty-five million, six hundred ninety-eight thousand, two hundred sixty-six".