18199283256 has 192 divisors, whose sum is σ = 64153728000. Its totient is φ = 4727056320.

The previous prime is 18199283251. The next prime is 18199283257. The reversal of 18199283256 is 65238299181.

It is a super-2 number, since 2×18199283256² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18199283251) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38265 + ... + 194583.

It is an arithmetic number, because the mean of its divisors is an integer number (334134000).

Almost surely, 2^18199283256 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 18199283256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32076864000).

18199283256 is an abundant number, since it is smaller than the sum of its proper divisors (45954444744).

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

18199283256 is a wasteful number, since it uses less digits than its factorization.

18199283256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156359 (or 156342 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 54.

The spelling of 18199283256 in words is "eighteen billion, one hundred ninety-nine million, two hundred eighty-three thousand, two hundred fifty-six".