22164530016078 has 80 divisors (see below), whose sum is σ = 50229429521040. Its totient is φ = 7304228072064.

The previous prime is 22164530016077. The next prime is 22164530016113. The reversal of 22164530016078 is 87061003546122.

22164530016078 is a `hidden beast` number, since 2 + 2 + 1 + 6 + 4 + 5 + 30 + 0 + 1 + 607 + 8 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22164530016073) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 117369100 + ... + 117557792.

It is an arithmetic number, because the mean of its divisors is an integer number (627867869013).

Almost surely, 2^{22164530016078} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22164530016078, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25114714760520).

22164530016078 is an abundant number, since it is smaller than the sum of its proper divisors (28064899504962).

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

22164530016078 is a wasteful number, since it uses less digits than its factorization.

22164530016078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196943 (or 196934 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 22164530016078 in words is "twenty-two trillion, one hundred sixty-four billion, five hundred thirty million, sixteen thousand, seventy-eight".