1246122666 has 24 divisors (see below), whose sum is σ = 2704634244. Its totient is φ = 414650880.

The previous prime is 1246122649. The next prime is 1246122673. The reversal of 1246122666 is 6662216421.

It can be written as a sum of positive squares in 2 ways, for example, as 1245737025 + 385641 = 35295^2 + 621^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1246122666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49605 + ... + 70376.

Almost surely, 2^1246122666 is an apocalyptic number.

1246122666 is an abundant number, since it is smaller than the sum of its proper divisors (1458511578).

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

1246122666 is a wasteful number, since it uses less digits than its factorization.

1246122666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120566 (or 120563 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 1246122666 is about 35300.4626881858. The cubic root of 1246122666 is about 1076.1023963626.

The spelling of 1246122666 in words is "one billion, two hundred forty-six million, one hundred twenty-two thousand, six hundred sixty-six".