1266650413 has 8 divisors (see below), whose sum is σ = 1448503232. Its totient is φ = 1085023296.

The previous prime is 1266650401. The next prime is 1266650443. The reversal of 1266650413 is 3140566621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1266650413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266650443) 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 in 7 ways as a sum of consecutive naturals, for example, 44220 + ... + 66997.

It is an arithmetic number, because the mean of its divisors is an integer number (181062904).

Almost surely, 2^1266650413 is an apocalyptic number.

It is an amenable number.

1266650413 is a deficient number, since it is larger than the sum of its proper divisors (181852819).

1266650413 is a wasteful number, since it uses less digits than its factorization.

1266650413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112851.

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

The square root of 1266650413 is about 35590.0324950681. The cubic root of 1266650413 is about 1081.9792275547.

The spelling of 1266650413 in words is "one billion, two hundred sixty-six million, six hundred fifty thousand, four hundred thirteen".