22755957581 has 8 divisors (see below), whose sum is σ = 26259302784. Its totient is φ = 19315735920.

The previous prime is 22755957569. The next prime is 22755957583. The reversal of 22755957581 is 18575955722.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22755957581 - 2²⁶ = 22688848717 is a prime.

It is a super-2 number, since 2×22755957581² (a number of 22 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 (22755957583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15780110 + ... + 15781551.

It is an arithmetic number, because the mean of its divisors is an integer number (3282412848).

Almost surely, 2^22755957581 is an apocalyptic number.

It is an amenable number.

22755957581 is a deficient number, since it is larger than the sum of its proper divisors (3503345203).

22755957581 is a wasteful number, since it uses less digits than its factorization.

22755957581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31561771.

The product of its digits is 8820000, while the sum is 56.

The spelling of 22755957581 in words is "twenty-two billion, seven hundred fifty-five million, nine hundred fifty-seven thousand, five hundred eighty-one".