2166881054 has 8 divisors (see below), whose sum is σ = 3500346360. Its totient is φ = 1000098936.

The previous prime is 2166881051. The next prime is 2166881071. The reversal of 2166881054 is 4501886612.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166881051) 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 3 ways as a sum of consecutive naturals, for example, 41670764 + ... + 41670815.

It is an arithmetic number, because the mean of its divisors is an integer number (437543295).

Almost surely, 2^2166881054 is an apocalyptic number.

2166881054 is a deficient number, since it is larger than the sum of its proper divisors (1333465306).

2166881054 is a wasteful number, since it uses less digits than its factorization.

2166881054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83341594.

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 2166881054 is about 46549.7696449725. The cubic root of 2166881054 is about 1294.0320239211.

The spelling of 2166881054 in words is "two billion, one hundred sixty-six million, eight hundred eighty-one thousand, fifty-four".