11888166223 has 4 divisors (see below), whose sum is σ = 12271655488. Its totient is φ = 11504676960.

The previous prime is 11888166217. The next prime is 11888166233. The reversal of 11888166223 is 32266188811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32266188811 = 1283 ⋅25149017.

It is a cyclic number.

It is not a de Polignac number, because 11888166223 - 2²¹ = 11886069071 is a prime.

It is a super-2 number, since 2×11888166223² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11888166203) 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, 191744586 + ... + 191744647.

It is an arithmetic number, because the mean of its divisors is an integer number (3067913872).

Almost surely, 2^11888166223 is an apocalyptic number.

11888166223 is a deficient number, since it is larger than the sum of its proper divisors (383489265).

11888166223 is an equidigital number, since it uses as much as digits as its factorization.

11888166223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383489264.

The product of its digits is 221184, while the sum is 46.

The spelling of 11888166223 in words is "eleven billion, eight hundred eighty-eight million, one hundred sixty-six thousand, two hundred twenty-three".