22618160521 has 4 divisors (see below), whose sum is σ = 24674356944. Its totient is φ = 20561964100.

The previous prime is 22618160507. The next prime is 22618160533. The reversal of 22618160521 is 12506181622.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22618160521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22618160321) 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, 1028098195 + ... + 1028098216.

It is an arithmetic number, because the mean of its divisors is an integer number (6168589236).

Almost surely, 2^22618160521 is an apocalyptic number.

It is an amenable number.

22618160521 is a deficient number, since it is larger than the sum of its proper divisors (2056196423).

22618160521 is a wasteful number, since it uses less digits than its factorization.

22618160521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2056196422.

The product of its (nonzero) digits is 11520, while the sum is 34.

The spelling of 22618160521 in words is "twenty-two billion, six hundred eighteen million, one hundred sixty thousand, five hundred twenty-one".