18222167040 has 1056 divisors, whose sum is σ = 77422583808. Its totient is φ = 3612672000.

The previous prime is 18222167017. The next prime is 18222167057. The reversal of 18222167040 is 4076122281.

It is a tau number, because it is divible by the number of its divisors (1056).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 18222166992 and 18222167010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 256650205 + ... + 256650275.

Almost surely, 2^18222167040 is an apocalyptic number.

18222167040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18222167040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38711291904).

18222167040 is an abundant number, since it is smaller than the sum of its proper divisors (59200416768).

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

18222167040 is a wasteful number, since it uses less digits than its factorization.

18222167040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The spelling of 18222167040 in words is "eighteen billion, two hundred twenty-two million, one hundred sixty-seven thousand, forty".