1266301642431 has 32 divisors (see below), whose sum is σ = 1934529454080. Its totient is φ = 721755530496.

The previous prime is 1266301642391. The next prime is 1266301642447. The reversal of 1266301642431 is 1342461036621.

It is not a de Polignac number, because 1266301642431 - 2⁶ = 1266301642367 is a prime.

It is a super-2 number, since 2×1266301642431² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1266301642431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266301642531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14039305 + ... + 14129213.

It is an arithmetic number, because the mean of its divisors is an integer number (60454045440).

Almost surely, 2^{1266301642431} is an apocalyptic number.

1266301642431 is a deficient number, since it is larger than the sum of its proper divisors (668227811649).

1266301642431 is a wasteful number, since it uses less digits than its factorization.

1266301642431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91623.

The product of its (nonzero) digits is 124416, while the sum is 39.

The spelling of 1266301642431 in words is "one trillion, two hundred sixty-six billion, three hundred one million, six hundred forty-two thousand, four hundred thirty-one".