16434054505644 has 12 divisors (see below), whose sum is σ = 38346127179864. Its totient is φ = 5478018168544.

The previous prime is 16434054505621. The next prime is 16434054505703. The reversal of 16434054505644 is 44650545043461.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 684752271057 + ... + 684752271080.

It is an arithmetic number, because the mean of its divisors is an integer number (3195510598322).

Almost surely, 2^{16434054505644} is an apocalyptic number.

It is an amenable number.

16434054505644 is an abundant number, since it is smaller than the sum of its proper divisors (21912072674220).

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

16434054505644 is a wasteful number, since it uses less digits than its factorization.

16434054505644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369504542144 (or 1369504542142 counting only the distinct ones).

The product of its (nonzero) digits is 13824000, while the sum is 51.

The spelling of 16434054505644 in words is "sixteen trillion, four hundred thirty-four billion, fifty-four million, five hundred five thousand, six hundred forty-four".