22555164221340 has 48 divisors (see below), whose sum is σ = 63157916408832. Its totient is φ = 6014381260096.

The previous prime is 22555164221311. The next prime is 22555164221341. The reversal of 22555164221340 is 4312246155522.

It is a super-2 number, since 2×22555164221340² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22555164221292 and 22555164221301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22555164221341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9181104 + ... + 11375543.

It is an arithmetic number, because the mean of its divisors is an integer number (1315789925184).

Almost surely, 2^{22555164221340} is an apocalyptic number.

22555164221340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22555164221340 is an abundant number, since it is smaller than the sum of its proper divisors (40602752187492).

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

22555164221340 is a wasteful number, since it uses less digits than its factorization.

22555164221340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20574946 (or 20574944 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 42.

The spelling of 22555164221340 in words is "twenty-two trillion, five hundred fifty-five billion, one hundred sixty-four million, two hundred twenty-one thousand, three hundred forty".