22116072757 has 4 divisors (see below), whose sum is σ = 22117002796. Its totient is φ = 22115142720.

The previous prime is 22116072703. The next prime is 22116072767. The reversal of 22116072757 is 75727061122.

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

It can be written as a sum of positive squares in 2 ways, for example, as 34409956 + 22081662801 = 5866^2 + 148599^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22116072757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22116072767) 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, 428388 + ... + 477229.

It is an arithmetic number, because the mean of its divisors is an integer number (5529250699).

Almost surely, 2^22116072757 is an apocalyptic number.

It is an amenable number.

22116072757 is a deficient number, since it is larger than the sum of its proper divisors (930039).

22116072757 is an equidigital number, since it uses as much as digits as its factorization.

22116072757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930038.

The product of its (nonzero) digits is 82320, while the sum is 40.

The spelling of 22116072757 in words is "twenty-two billion, one hundred sixteen million, seventy-two thousand, seven hundred fifty-seven".