16581054522 has 16 divisors (see below), whose sum is σ = 34603940160. Its totient is φ = 5286712992.

The previous prime is 16581054473. The next prime is 16581054527. The reversal of 16581054522 is 22545018561.

It is not an unprimeable number, because it can be changed into a prime (16581054527) 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, 60076147 + ... + 60076422.

It is an arithmetic number, because the mean of its divisors is an integer number (2162746260).

Almost surely, 2^16581054522 is an apocalyptic number.

16581054522 is an abundant number, since it is smaller than the sum of its proper divisors (18022885638).

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

16581054522 is a wasteful number, since it uses less digits than its factorization.

16581054522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120152597.

The product of its (nonzero) digits is 96000, while the sum is 39.

The spelling of 16581054522 in words is "sixteen billion, five hundred eighty-one million, fifty-four thousand, five hundred twenty-two".