18046217671056 has 45 divisors (see below), whose sum is σ = 50504487952971. Its totient is φ = 6015388898016.

The previous prime is 18046217671051. The next prime is 18046217671087. The reversal of 18046217671056 is 65017671264081.

The square root of 18046217671056 is 4248084.

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

18046217671056 is a `hidden beast` number, since 1 + 8 + 0 + 4 + 621 + 7 + 6 + 7 + 1 + 0 + 5 + 6 = 666.

It is a super-2 number, since 2×18046217671056² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18046217670993 and 18046217671011.

It is not an unprimeable number, because it can be changed into a prime (18046217671051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 50800005 + ... + 51154011.

Almost surely, 2^{18046217671056} is an apocalyptic number.

18046217671056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

18046217671056 is the 4248084-th square number.

It is an amenable number.

18046217671056 is an abundant number, since it is smaller than the sum of its proper divisors (32458270281915).

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

18046217671056 is an frugal number, since it uses more digits than its factorization.

18046217671056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708028 (or 354012 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The spelling of 18046217671056 in words is "eighteen trillion, forty-six billion, two hundred seventeen million, six hundred seventy-one thousand, fifty-six".