18422140716 has 120 divisors (see below), whose sum is σ = 55793448480. Its totient is φ = 5191319808.

The previous prime is 18422140691. The next prime is 18422140717. The reversal of 18422140716 is 61704122481.

It is a happy number.

18422140716 is a `hidden beast` number, since 18 + 4 + 221 + 407 + 16 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (18422140717) 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, 109930 + ... + 221198.

It is an arithmetic number, because the mean of its divisors is an integer number (464945404).

Almost surely, 2^18422140716 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18422140716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27896724240).

18422140716 is an abundant number, since it is smaller than the sum of its proper divisors (37371307764).

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

18422140716 is a wasteful number, since it uses less digits than its factorization.

18422140716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111365 (or 111354 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The spelling of 18422140716 in words is "eighteen billion, four hundred twenty-two million, one hundred forty thousand, seven hundred sixteen".