18146541336 has 192 divisors, whose sum is σ = 60342589440. Its totient is φ = 4436044800.

The previous prime is 18146541317. The next prime is 18146541377. The reversal of 18146541336 is 63314564181.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 319321 + ... + 371831.

It is an arithmetic number, because the mean of its divisors is an integer number (314284320).

Almost surely, 2^18146541336 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 18146541336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30171294720).

18146541336 is an abundant number, since it is smaller than the sum of its proper divisors (42196048104).

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

18146541336 is a wasteful number, since it uses less digits than its factorization.

18146541336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52566 (or 52551 counting only the distinct ones).

The product of its digits is 207360, while the sum is 42.

The spelling of 18146541336 in words is "eighteen billion, one hundred forty-six million, five hundred forty-one thousand, three hundred thirty-six".