2154062166 has 32 divisors (see below), whose sum is σ = 4334653440. Its totient is φ = 713611584.

The previous prime is 2154062159. The next prime is 2154062191. The reversal of 2154062166 is 6612604512.

It is a super-2 number, since 2×2154062166² = 9279967629985223112, which 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 (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1004091 + ... + 1006233.

It is an arithmetic number, because the mean of its divisors is an integer number (135457920).

Almost surely, 2^2154062166 is an apocalyptic number.

2154062166 is an abundant number, since it is smaller than the sum of its proper divisors (2180591274).

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

2154062166 is a wasteful number, since it uses less digits than its factorization.

2154062166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3100.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 2154062166 is about 46411.8752691593. The cubic root of 2154062166 is about 1291.4752199606.

Adding to 2154062166 its reverse (6612604512), we get a palindrome (8766666678).

The spelling of 2154062166 in words is "two billion, one hundred fifty-four million, sixty-two thousand, one hundred sixty-six".