2216626017731 has 4 divisors (see below), whose sum is σ = 2333290545000. Its totient is φ = 2099961490464.

The previous prime is 2216626017659. The next prime is 2216626017743. The reversal of 2216626017731 is 1377106266122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2216626017731 is a prime.

It is a super-2 number, since 2×2216626017731² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2216626017761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58332263606 + ... + 58332263643.

It is an arithmetic number, because the mean of its divisors is an integer number (583322636250).

Almost surely, 2^{2216626017731} is an apocalyptic number.

2216626017731 is a deficient number, since it is larger than the sum of its proper divisors (116664527269).

2216626017731 is a wasteful number, since it uses less digits than its factorization.

2216626017731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116664527268.

The product of its (nonzero) digits is 254016, while the sum is 44.

The spelling of 2216626017731 in words is "two trillion, two hundred sixteen billion, six hundred twenty-six million, seventeen thousand, seven hundred thirty-one".