2216626606525 has 24 divisors (see below), whose sum is σ = 2845212894720. Its totient is φ = 1711059456960.

The previous prime is 2216626606423. The next prime is 2216626606529. The reversal of 2216626606525 is 5256066266122.

It is a de Polignac number, because none of the positive numbers 2^k-2216626606525 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216626606529) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 160512 + ... + 2111638.

It is an arithmetic number, because the mean of its divisors is an integer number (118550537280).

Almost surely, 2^{2216626606525} is an apocalyptic number.

2216626606525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2216626606525 is a deficient number, since it is larger than the sum of its proper divisors (628586288195).

2216626606525 is a wasteful number, since it uses less digits than its factorization.

2216626606525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1952733 (or 1952728 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 49.

The spelling of 2216626606525 in words is "two trillion, two hundred sixteen billion, six hundred twenty-six million, six hundred six thousand, five hundred twenty-five".