2166610252016 has 40 divisors (see below), whose sum is σ = 4869098536320. Its totient is φ = 914688333504.

The previous prime is 2166610252003. The next prime is 2166610252031. The reversal of 2166610252016 is 6102520166612.

It is a super-3 number, since 3×2166610252016³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144356186 + ... + 144371193.

It is an arithmetic number, because the mean of its divisors is an integer number (121727463408).

Almost surely, 2^{2166610252016} is an apocalyptic number.

It is an amenable number.

2166610252016 is an abundant number, since it is smaller than the sum of its proper divisors (2702488284304).

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

2166610252016 is a wasteful number, since it uses less digits than its factorization.

2166610252016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288727461 (or 288727455 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 2166610252016 in words is "two trillion, one hundred sixty-six billion, six hundred ten million, two hundred fifty-two thousand, sixteen".