2166009406632 has 80 divisors (see below), whose sum is σ = 6067195358400. Its totient is φ = 721959881760.

The previous prime is 2166009406607. The next prime is 2166009406637. The reversal of 2166009406632 is 2366049006612.

2166009406632 is a `hidden beast` number, since 2 + 1 + 6 + 6 + 0 + 0 + 9 + 4 + 0 + 6 + 632 = 666.

It is not an unprimeable number, because it can be changed into a prime (2166009406637) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 11818657 + ... + 12000527.

It is an arithmetic number, because the mean of its divisors is an integer number (75839941980).

Almost surely, 2^{2166009406632} is an apocalyptic number.

It is an amenable number.

2166009406632 is an abundant number, since it is smaller than the sum of its proper divisors (3901185951768).

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

2166009406632 is a wasteful number, since it uses less digits than its factorization.

2166009406632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200268 (or 200255 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

The spelling of 2166009406632 in words is "two trillion, one hundred sixty-six billion, nine million, four hundred six thousand, six hundred thirty-two".