2121614165166 has 64 divisors (see below), whose sum is σ = 4310646958080. Its totient is φ = 696012030720.

The previous prime is 2121614165141. The next prime is 2121614165173. The reversal of 2121614165166 is 6615614161212.

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 31 ways as a sum of consecutive naturals, for example, 475376251 + ... + 475380713.

It is an arithmetic number, because the mean of its divisors is an integer number (67353858720).

Almost surely, 2^{2121614165166} is an apocalyptic number.

2121614165166 is an abundant number, since it is smaller than the sum of its proper divisors (2189032792914).

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

2121614165166 is a wasteful number, since it uses less digits than its factorization.

2121614165166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6641.

The product of its digits is 103680, while the sum is 42.

The spelling of 2121614165166 in words is "two trillion, one hundred twenty-one billion, six hundred fourteen million, one hundred sixty-five thousand, one hundred sixty-six".