16554475216716 has 12 divisors (see below), whose sum is σ = 38627108839032. Its totient is φ = 5518158405568.

The previous prime is 16554475216711. The next prime is 16554475216729. The reversal of 16554475216716 is 61761257445561.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 16554475216716.

It is not an unprimeable number, because it can be changed into a prime (16554475216711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 689769800685 + ... + 689769800708.

It is an arithmetic number, because the mean of its divisors is an integer number (3218925736586).

Almost surely, 2^{16554475216716} is an apocalyptic number.

It is an amenable number.

16554475216716 is an abundant number, since it is smaller than the sum of its proper divisors (22072633622316).

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

16554475216716 is a wasteful number, since it uses less digits than its factorization.

16554475216716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379539601400 (or 1379539601398 counting only the distinct ones).

The product of its digits is 42336000, while the sum is 60.

The spelling of 16554475216716 in words is "sixteen trillion, five hundred fifty-four billion, four hundred seventy-five million, two hundred sixteen thousand, seven hundred sixteen".