22320353545 has 16 divisors (see below), whose sum is σ = 30896857728. Its totient is φ = 15162341760.

The previous prime is 22320353509. The next prime is 22320353557. The reversal of 22320353545 is 54535302322.

It is a happy number.

It is not a de Polignac number, because 22320353545 - 2²⁷ = 22186135817 is a prime.

It is a super-3 number, since 3×22320353545³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22320353545.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2976276 + ... + 2983765.

It is an arithmetic number, because the mean of its divisors is an integer number (1931053608).

Almost surely, 2^22320353545 is an apocalyptic number.

It is an amenable number.

22320353545 is a deficient number, since it is larger than the sum of its proper divisors (8576504183).

22320353545 is a wasteful number, since it uses less digits than its factorization.

22320353545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5960160.

The product of its (nonzero) digits is 108000, while the sum is 34.

Adding to 22320353545 its reverse (54535302322), we get a palindrome (76855655867).

The spelling of 22320353545 in words is "twenty-two billion, three hundred twenty million, three hundred fifty-three thousand, five hundred forty-five".