22215730657 has 8 divisors (see below), whose sum is σ = 22944832416. Its totient is φ = 21496286112.

The previous prime is 22215730643. The next prime is 22215730681. The reversal of 22215730657 is 75603751222.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22215730657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22215730697) 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, 2409628 + ... + 2418829.

It is an arithmetic number, because the mean of its divisors is an integer number (2868104052).

Almost surely, 2^22215730657 is an apocalyptic number.

It is an amenable number.

22215730657 is a deficient number, since it is larger than the sum of its proper divisors (729101759).

22215730657 is a wasteful number, since it uses less digits than its factorization.

22215730657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4828607.

The product of its (nonzero) digits is 176400, while the sum is 40.

The spelling of 22215730657 in words is "twenty-two billion, two hundred fifteen million, seven hundred thirty thousand, six hundred fifty-seven".