1166666662393 has 16 divisors (see below), whose sum is σ = 1322348760000. Its totient is φ = 1022616340992.

The previous prime is 1166666662391. The next prime is 1166666662397. The reversal of 1166666662393 is 3932666666611.

It is a cyclic number.

It is not a de Polignac number, because 1166666662393 - 2¹ = 1166666662391 is a prime.

It is a super-2 number, since 2×1166666662393² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1166666662391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30590868 + ... + 30628981.

It is an arithmetic number, because the mean of its divisors is an integer number (82646797500).

Almost surely, 2^{1166666662393} is an apocalyptic number.

It is an amenable number.

1166666662393 is a deficient number, since it is larger than the sum of its proper divisors (155682097607).

1166666662393 is a wasteful number, since it uses less digits than its factorization.

1166666662393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61219944.

The product of its digits is 45349632, while the sum is 61.

The spelling of 1166666662393 in words is "one trillion, one hundred sixty-six billion, six hundred sixty-six million, six hundred sixty-two thousand, three hundred ninety-three".