1266265006 has 4 divisors (see below), whose sum is σ = 1899397512. Its totient is φ = 633132502.

The previous prime is 1266265003. The next prime is 1266265037. The reversal of 1266265006 is 6005626621.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266265001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316566250 + ... + 316566253.

It is an arithmetic number, because the mean of its divisors is an integer number (474849378).

Almost surely, 2^1266265006 is an apocalyptic number.

1266265006 is a deficient number, since it is larger than the sum of its proper divisors (633132506).

1266265006 is an equidigital number, since it uses as much as digits as its factorization.

1266265006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633132505.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 1266265006 is about 35584.6175474741. The cubic root of 1266265006 is about 1081.8694775492.

The spelling of 1266265006 in words is "one billion, two hundred sixty-six million, two hundred sixty-five thousand, six".