2216623245751 has 4 divisors (see below), whose sum is σ = 2218301235904. Its totient is φ = 2214945255600.

The previous prime is 2216623245731. The next prime is 2216623245757. The reversal of 2216623245751 is 1575423266122.

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

It is a cyclic number.

It is not a de Polignac number, because 2216623245751 - 2¹³ = 2216623237559 is a prime.

It is a super-2 number, since 2×2216623245751² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216623245757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 838993095 + ... + 838995736.

It is an arithmetic number, because the mean of its divisors is an integer number (554575308976).

Almost surely, 2^{2216623245751} is an apocalyptic number.

2216623245751 is a deficient number, since it is larger than the sum of its proper divisors (1677990153).

2216623245751 is a wasteful number, since it uses less digits than its factorization.

2216623245751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1677990152.

The product of its digits is 1209600, while the sum is 46.

The spelling of 2216623245751 in words is "two trillion, two hundred sixteen billion, six hundred twenty-three million, two hundred forty-five thousand, seven hundred fifty-one".