18655482437081 has 24 divisors (see below), whose sum is σ = 22689298722240. Its totient is φ = 15265128211872.

The previous prime is 18655482437063. The next prime is 18655482437087. The reversal of 18655482437081 is 18073428455681.

It is not a de Polignac number, because 18655482437081 - 2¹⁴ = 18655482420697 is a prime.

It is a super-2 number, since 2×18655482437081² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18655482437087) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15686891 + ... + 16834176.

It is an arithmetic number, because the mean of its divisors is an integer number (945387446760).

Almost surely, 2^{18655482437081} is an apocalyptic number.

It is an amenable number.

18655482437081 is a deficient number, since it is larger than the sum of its proper divisors (4033816285159).

18655482437081 is a wasteful number, since it uses less digits than its factorization.

18655482437081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32521613 (or 32521606 counting only the distinct ones).

The product of its (nonzero) digits is 51609600, while the sum is 62.

The spelling of 18655482437081 in words is "eighteen trillion, six hundred fifty-five billion, four hundred eighty-two million, four hundred thirty-seven thousand, eighty-one".