16443456654 has 16 divisors (see below), whose sum is σ = 34316779392. Its totient is φ = 5242841208.

The previous prime is 16443456649. The next prime is 16443456683. The reversal of 16443456654 is 45665434461.

It is a super-3 number, since 3×16443456654³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59577604 + ... + 59577879.

It is an arithmetic number, because the mean of its divisors is an integer number (2144798712).

Almost surely, 2^16443456654 is an apocalyptic number.

16443456654 is an abundant number, since it is smaller than the sum of its proper divisors (17873322738).

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

16443456654 is a wasteful number, since it uses less digits than its factorization.

16443456654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119155511.

The product of its digits is 4147200, while the sum is 48.

The spelling of 16443456654 in words is "sixteen billion, four hundred forty-three million, four hundred fifty-six thousand, six hundred fifty-four".