18160684481 has 8 divisors (see below), whose sum is σ = 19202238720. Its totient is φ = 17127703152.

The previous prime is 18160684453. The next prime is 18160684483. The reversal of 18160684481 is 18448606181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18160684481 is a prime.

It is a super-2 number, since 2×18160684481² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18160684483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2138870 + ... + 2147343.

It is an arithmetic number, because the mean of its divisors is an integer number (2400279840).

Almost surely, 2^18160684481 is an apocalyptic number.

It is an amenable number.

18160684481 is a deficient number, since it is larger than the sum of its proper divisors (1041554239).

18160684481 is a wasteful number, since it uses less digits than its factorization.

18160684481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4286455.

The product of its (nonzero) digits is 294912, while the sum is 47.

The spelling of 18160684481 in words is "eighteen billion, one hundred sixty million, six hundred eighty-four thousand, four hundred eighty-one".