18228741120 has 352 divisors, whose sum is σ = 67030243200. Its totient is φ = 4692344832.

The previous prime is 18228741059. The next prime is 18228741127. The reversal of 18228741120 is 2114782281.

It is a happy number.

18228741120 is a `hidden beast` number, since 18 + 228 + 7 + 411 + 2 + 0 = 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 (18228741127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4006687 + ... + 4011233.

Almost surely, 2^18228741120 is an apocalyptic number.

18228741120 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 18228741120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33515121600).

18228741120 is an abundant number, since it is smaller than the sum of its proper divisors (48801502080).

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

18228741120 is a wasteful number, since it uses less digits than its factorization.

18228741120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4610 (or 4586 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The spelling of 18228741120 in words is "eighteen billion, two hundred twenty-eight million, seven hundred forty-one thousand, one hundred twenty".