18013437362176 has 153 divisors (see below), whose sum is σ = 36778452214873. Its totient is φ = 8822553313280.

The previous prime is 18013437362171. The next prime is 18013437362209. The reversal of 18013437362176 is 67126373431081.

The square root of 18013437362176 is 4244224.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 12173288472576 + 5840148889600 = 3489024^2 + 2416640^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18013437362171) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 64104759156 + ... + 64104759436.

Almost surely, 2^{18013437362176} is an apocalyptic number.

18013437362176 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

18013437362176 is the 4244224-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18013437362176

18013437362176 is an abundant number, since it is smaller than the sum of its proper divisors (18765014852697).

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

18013437362176 is an frugal number, since it uses more digits than its factorization.

18013437362176 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712 (or 342 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 52.

The spelling of 18013437362176 in words is "eighteen trillion, thirteen billion, four hundred thirty-seven million, three hundred sixty-two thousand, one hundred seventy-six".