1266332441451 has 64 divisors (see below), whose sum is σ = 2196884422656. Its totient is φ = 629151177600.

The previous prime is 1266332441393. The next prime is 1266332441459. The reversal of 1266332441451 is 1541442336621.

It is not a de Polignac number, because 1266332441451 - 2¹¹ = 1266332439403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1266332441459) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 71169366 + ... + 71187156.

It is an arithmetic number, because the mean of its divisors is an integer number (34326319104).

Almost surely, 2^{1266332441451} is an apocalyptic number.

1266332441451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1266332441451 is a deficient number, since it is larger than the sum of its proper divisors (930551981205).

1266332441451 is a wasteful number, since it uses less digits than its factorization.

1266332441451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31232.

The product of its digits is 414720, while the sum is 42.

The spelling of 1266332441451 in words is "one trillion, two hundred sixty-six billion, three hundred thirty-two million, four hundred forty-one thousand, four hundred fifty-one".