11666214556562 has 8 divisors (see below), whose sum is σ = 17499357046092. Its totient is φ = 5833095541200.

The previous prime is 11666214556543. The next prime is 11666214556597. The reversal of 11666214556562 is 26565541266611.

It can be written as a sum of positive squares in 2 ways, for example, as 9177743011441 + 2488471545121 = 3029479^2 + 1577489^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×11666214556562³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 11666214556498 and 11666214556507.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4568489 + ... + 6648572.

Almost surely, 2^{11666214556562} is an apocalyptic number.

11666214556562 is a deficient number, since it is larger than the sum of its proper divisors (5833142489530).

11666214556562 is a wasteful number, since it uses less digits than its factorization.

11666214556562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11737084.

The product of its digits is 15552000, while the sum is 56.

The spelling of 11666214556562 in words is "eleven trillion, six hundred sixty-six billion, two hundred fourteen million, five hundred fifty-six thousand, five hundred sixty-two".