1226095866 has 24 divisors (see below), whose sum is σ = 2754932544. Its totient is φ = 408698460.

The previous prime is 1226095861. The next prime is 1226095867. The reversal of 1226095866 is 6685906221.

1226095866 is a `hidden beast` number, since 1 + 2 + 2 + 60 + 9 + 586 + 6 = 666.

1226095866 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1226095866² = 3006622145244579912, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1226095861) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1260930 + ... + 1261901.

It is an arithmetic number, because the mean of its divisors is an integer number (114788856).

Almost surely, 2^1226095866 is an apocalyptic number.

1226095866 is an abundant number, since it is smaller than the sum of its proper divisors (1528836678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1226095866 is an equidigital number, since it uses as much as digits as its factorization.

1226095866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2522848 (or 2522836 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 1226095866 is about 35015.6517289055. The cubic root of 1226095866 is about 1070.3064502037.

It can be divided in two parts, 1226095 and 866, that added together give a triangular number (1226961 = T₁₅₆₆).

The spelling of 1226095866 in words is "one billion, two hundred twenty-six million, ninety-five thousand, eight hundred sixty-six".