1266740024099 has 16 divisors (see below), whose sum is σ = 1406101757280. Its totient is φ = 1141016738400.

The previous prime is 1266740024087. The next prime is 1266740024141. The reversal of 1266740024099 is 9904200476621.

It is not a de Polignac number, because 1266740024099 - 2¹² = 1266740020003 is a prime.

It is a super-3 number, since 3×1266740024099³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1266740024009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4220612 + ... + 4510769.

It is an arithmetic number, because the mean of its divisors is an integer number (87881359830).

Almost surely, 2^{1266740024099} is an apocalyptic number.

1266740024099 is a deficient number, since it is larger than the sum of its proper divisors (139361733181).

1266740024099 is an equidigital number, since it uses as much as digits as its factorization.

1266740024099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8731523 (or 8731501 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 1266740024099 in words is "one trillion, two hundred sixty-six billion, seven hundred forty million, twenty-four thousand, ninety-nine".