16161335488784 has 60 divisors (see below), whose sum is σ = 32810964338880. Its totient is φ = 7709859662400.

The previous prime is 16161335488777. The next prime is 16161335488811. The reversal of 16161335488784 is 48788453316161.

It is a happy number.

It is a super-2 number, since 2×16161335488784² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16161335488784.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6310244 + ... + 8493635.

It is an arithmetic number, because the mean of its divisors is an integer number (546849405648).

Almost surely, 2^{16161335488784} is an apocalyptic number.

It is an amenable number.

16161335488784 is an abundant number, since it is smaller than the sum of its proper divisors (16649628850096).

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

16161335488784 is a wasteful number, since it uses less digits than its factorization.

16161335488784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14804020 (or 14803983 counting only the distinct ones).

The product of its digits is 92897280, while the sum is 65.

The spelling of 16161335488784 in words is "sixteen trillion, one hundred sixty-one billion, three hundred thirty-five million, four hundred eighty-eight thousand, seven hundred eighty-four".