1166394184900 has 144 divisors (see below), whose sum is σ = 2900175515776. Its totient is φ = 398868986880.

The previous prime is 1166394184873. The next prime is 1166394184919. The reversal of 1166394184900 is 94814936611.

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 47 ways as a sum of consecutive naturals, for example, 716897887 + ... + 716899513.

Almost surely, 2^{1166394184900} is an apocalyptic number.

1166394184900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1166394184900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1450087757888).

1166394184900 is an abundant number, since it is smaller than the sum of its proper divisors (1733781330876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1166394184900 is a wasteful number, since it uses less digits than its factorization.

1166394184900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3678 (or 3671 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 52.

The spelling of 1166394184900 in words is "one trillion, one hundred sixty-six billion, three hundred ninety-four million, one hundred eighty-four thousand, nine hundred".