2165071616622 has 24 divisors (see below), whose sum is σ = 4691022336000. Its totient is φ = 721685333760.

The previous prime is 2165071616597. The next prime is 2165071616639. The reversal of 2165071616622 is 2266161705612.

2165071616622 is a `hidden beast` number, since 2 + 1 + 6 + 5 + 0 + 7 + 1 + 6 + 16 + 622 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2771347 + ... + 3465617.

It is an arithmetic number, because the mean of its divisors is an integer number (195459264000).

Almost surely, 2^{2165071616622} is an apocalyptic number.

2165071616622 is an abundant number, since it is smaller than the sum of its proper divisors (2525950719378).

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

2165071616622 is a wasteful number, since it uses less digits than its factorization.

2165071616622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867528 (or 867525 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 2165071616622 in words is "two trillion, one hundred sixty-five billion, seventy-one million, six hundred sixteen thousand, six hundred twenty-two".