11664742262671 has 4 divisors (see below), whose sum is σ = 11756590627072. Its totient is φ = 11572893898272.

The previous prime is 11664742262651. The next prime is 11664742262699. The reversal of 11664742262671 is 17626224746611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11664742262671 - 2⁷ = 11664742262543 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 (11664742262651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45924182010 + ... + 45924182263.

It is an arithmetic number, because the mean of its divisors is an integer number (2939147656768).

Almost surely, 2^{11664742262671} is an apocalyptic number.

11664742262671 is a deficient number, since it is larger than the sum of its proper divisors (91848364401).

11664742262671 is an equidigital number, since it uses as much as digits as its factorization.

11664742262671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91848364400.

The product of its digits is 8128512, while the sum is 55.

The spelling of 11664742262671 in words is "eleven trillion, six hundred sixty-four billion, seven hundred forty-two million, two hundred sixty-two thousand, six hundred seventy-one".