2216656425161 has 16 divisors (see below), whose sum is σ = 2280045401088. Its totient is φ = 2153982715200.

The previous prime is 2216656425127. The next prime is 2216656425167. The reversal of 2216656425161 is 1615246566122.

It is a cyclic number.

It is not a de Polignac number, because 2216656425161 - 2³⁰ = 2215582683337 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2216656425167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5002256 + ... + 5427326.

It is an arithmetic number, because the mean of its divisors is an integer number (142502837568).

Almost surely, 2^{2216656425161} is an apocalyptic number.

It is an amenable number.

2216656425161 is a deficient number, since it is larger than the sum of its proper divisors (63388975927).

2216656425161 is a wasteful number, since it uses less digits than its factorization.

2216656425161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425912.

The product of its digits is 1036800, while the sum is 47.

The spelling of 2216656425161 in words is "two trillion, two hundred sixteen billion, six hundred fifty-six million, four hundred twenty-five thousand, one hundred sixty-one".