22657145818 has 8 divisors (see below), whose sum is σ = 34146789120. Its totient is φ = 11274882780.

The previous prime is 22657145809. The next prime is 22657145837. The reversal of 22657145818 is 81854175622.

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

It is a super-2 number, since 2×22657145818² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26844538 + ... + 26845381.

It is an arithmetic number, because the mean of its divisors is an integer number (4268348640).

Almost surely, 2^22657145818 is an apocalyptic number.

22657145818 is a deficient number, since it is larger than the sum of its proper divisors (11489643302).

22657145818 is a wasteful number, since it uses less digits than its factorization.

22657145818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53690132.

The product of its digits is 1075200, while the sum is 49.

The spelling of 22657145818 in words is "twenty-two billion, six hundred fifty-seven million, one hundred forty-five thousand, eight hundred eighteen".