22154310564 has 12 divisors (see below), whose sum is σ = 51693391344. Its totient is φ = 7384770184.

The previous prime is 22154310557. The next prime is 22154310571. The reversal of 22154310564 is 46501345122.

It is an interprime number because it is at equal distance from previous prime (22154310557) and next prime (22154310571).

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 923096262 + ... + 923096285.

It is an arithmetic number, because the mean of its divisors is an integer number (4307782612).

Almost surely, 2^22154310564 is an apocalyptic number.

It is an amenable number.

22154310564 is an abundant number, since it is smaller than the sum of its proper divisors (29539080780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22154310564 is a wasteful number, since it uses less digits than its factorization.

22154310564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1846192554 (or 1846192552 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 22154310564 its reverse (46501345122), we get a palindrome (68655655686).

The spelling of 22154310564 in words is "twenty-two billion, one hundred fifty-four million, three hundred ten thousand, five hundred sixty-four".