1266257231167 has 8 divisors (see below), whose sum is σ = 1316507870720. Its totient is φ = 1216594318680.

The previous prime is 1266257231159. The next prime is 1266257231179. The reversal of 1266257231167 is 7611327526621.

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

It is a cyclic number.

It is not a de Polignac number, because 1266257231167 - 2³ = 1266257231159 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1266257231167.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266257235167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146927373 + ... + 146935990.

It is an arithmetic number, because the mean of its divisors is an integer number (164563483840).

Almost surely, 2^{1266257231167} is an apocalyptic number.

1266257231167 is a deficient number, since it is larger than the sum of its proper divisors (50250639553).

1266257231167 is a wasteful number, since it uses less digits than its factorization.

1266257231167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293863533.

The product of its digits is 1270080, while the sum is 49.

The spelling of 1266257231167 in words is "one trillion, two hundred sixty-six billion, two hundred fifty-seven million, two hundred thirty-one thousand, one hundred sixty-seven".