1166860660667 has 8 divisors (see below), whose sum is σ = 1256629190880. Its totient is φ = 1077093561600.

The previous prime is 1166860660631. The next prime is 1166860660697. The reversal of 1166860660667 is 7660660686611.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1166860660667 - 2¹⁸ = 1166860398523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1166860660697) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1832042 + ... + 2385392.

It is an arithmetic number, because the mean of its divisors is an integer number (157078648860).

Almost surely, 2^{1166860660667} is an apocalyptic number.

1166860660667 is a deficient number, since it is larger than the sum of its proper divisors (89768530213).

1166860660667 is a wasteful number, since it uses less digits than its factorization.

1166860660667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715573.

The product of its (nonzero) digits is 15676416, while the sum is 59.

The spelling of 1166860660667 in words is "one trillion, one hundred sixty-six billion, eight hundred sixty million, six hundred sixty thousand, six hundred sixty-seven".