11666636135422 has 16 divisors (see below), whose sum is σ = 17617633250832. Its totient is φ = 5794222692160.

The previous prime is 11666636135377. The next prime is 11666636135437. The reversal of 11666636135422 is 22453163666611.

It is a super-2 number, since 2×11666636135422² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11666636135422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32564968 + ... + 32921275.

It is an arithmetic number, because the mean of its divisors is an integer number (1101102078177).

Almost surely, 2^{11666636135422} is an apocalyptic number.

11666636135422 is a deficient number, since it is larger than the sum of its proper divisors (5950997115410).

11666636135422 is a wasteful number, since it uses less digits than its factorization.

11666636135422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65486843.

The product of its digits is 5598720, while the sum is 52.

The spelling of 11666636135422 in words is "eleven trillion, six hundred sixty-six billion, six hundred thirty-six million, one hundred thirty-five thousand, four hundred twenty-two".