11666665115627 has 2 divisors, whose sum is σ = 11666665115628. Its totient is φ = 11666665115626.

The previous prime is 11666665115587. The next prime is 11666665115629. The reversal of 11666665115627 is 72651156666611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11666665115627 - 2¹⁶ = 11666665050091 is a prime.

It is a super-2 number, since 2×11666665115627² (a number of 27 digits) contains 22 as substring.

Together with 11666665115629, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11666665115629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5833332557813 + 5833332557814.

It is an arithmetic number, because the mean of its divisors is an integer number (5833332557814).

Almost surely, 2^{11666665115627} is an apocalyptic number.

11666665115627 is a deficient number, since it is larger than the sum of its proper divisors (1).

11666665115627 is an equidigital number, since it uses as much as digits as its factorization.

11666665115627 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16329600, while the sum is 59.

The spelling of 11666665115627 in words is "eleven trillion, six hundred sixty-six billion, six hundred sixty-five million, one hundred fifteen thousand, six hundred twenty-seven".