11667822671 has 2 divisors, whose sum is σ = 11667822672. Its totient is φ = 11667822670.

The previous prime is 11667822667. The next prime is 11667822731. The reversal of 11667822671 is 17622876611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11667822671 - 2² = 11667822667 is a prime.

It is a super-2 number, since 2×11667822671² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11667822611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5833911335 + 5833911336.

It is an arithmetic number, because the mean of its divisors is an integer number (5833911336).

Almost surely, 2^11667822671 is an apocalyptic number.

11667822671 is a deficient number, since it is larger than the sum of its proper divisors (1).

11667822671 is an equidigital number, since it uses as much as digits as its factorization.

11667822671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 338688, while the sum is 47.

The spelling of 11667822671 in words is "eleven billion, six hundred sixty-seven million, eight hundred twenty-two thousand, six hundred seventy-one".