18147185136000 has 256 divisors, whose sum is σ = 66842133508800. Its totient is φ = 4839249254400.

The previous prime is 18147185135953. The next prime is 18147185136001. The reversal of 18147185136000 is 63158174181.

18147185136000 is a `hidden beast` number, since 1 + 8 + 1 + 4 + 71 + 8 + 513 + 60 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18147185136001) 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, 20571687 + ... + 21435686.

Almost surely, 2^{18147185136000} is an apocalyptic number.

18147185136000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18147185136000 is an abundant number, since it is smaller than the sum of its proper divisors (48694948372800).

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

18147185136000 is an equidigital number, since it uses as much as digits as its factorization.

18147185136000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42007411 (or 42007383 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The spelling of 18147185136000 in words is "eighteen trillion, one hundred forty-seven billion, one hundred eighty-five million, one hundred thirty-six thousand".