1166868721846 has 8 divisors (see below), whose sum is σ = 1751570504064. Its totient is φ = 583011887160.

The previous prime is 1166868721831. The next prime is 1166868721853. The reversal of 1166868721846 is 6481278686611.

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

It is a super-2 number, since 2×1166868721846² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211233430 + ... + 211238953.

It is an arithmetic number, because the mean of its divisors is an integer number (218946313008).

Almost surely, 2^{1166868721846} is an apocalyptic number.

1166868721846 is a deficient number, since it is larger than the sum of its proper divisors (584701782218).

1166868721846 is a wasteful number, since it uses less digits than its factorization.

1166868721846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422473766.

The product of its digits is 37158912, while the sum is 64.

The spelling of 1166868721846 in words is "one trillion, one hundred sixty-six billion, eight hundred sixty-eight million, seven hundred twenty-one thousand, eight hundred forty-six".