16222768623 has 24 divisors (see below), whose sum is σ = 23545752048. Its totient is φ = 10763194752.

The previous prime is 16222768591. The next prime is 16222768637. The reversal of 16222768623 is 32686722261.

16222768623 is a `hidden beast` number, since 16 + 2 + 2 + 2 + 7 + 6 + 8 + 623 = 666.

It is not a de Polignac number, because 16222768623 - 2⁵ = 16222768591 is a prime.

It is a super-2 number, since 2×16222768623² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16222768643) 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, 2071411 + ... + 2079227.

It is an arithmetic number, because the mean of its divisors is an integer number (981073002).

Almost surely, 2^16222768623 is an apocalyptic number.

16222768623 is a deficient number, since it is larger than the sum of its proper divisors (7322983425).

16222768623 is a wasteful number, since it uses less digits than its factorization.

16222768623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8903 (or 8900 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The spelling of 16222768623 in words is "sixteen billion, two hundred twenty-two million, seven hundred sixty-eight thousand, six hundred twenty-three".