16554471401072 has 30 divisors (see below), whose sum is σ = 35255209501344. Its totient is φ = 7524759726880.

The previous prime is 16554471401057. The next prime is 16554471401089. The reversal of 16554471401072 is 27010417445561.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4275429728 + ... + 4275433599.

Almost surely, 2^{16554471401072} is an apocalyptic number.

It is an amenable number.

16554471401072 is an abundant number, since it is smaller than the sum of its proper divisors (18700738100272).

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

16554471401072 is a wasteful number, since it uses less digits than its factorization.

16554471401072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8550863357 (or 8550863340 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 47.

The spelling of 16554471401072 in words is "sixteen trillion, five hundred fifty-four billion, four hundred seventy-one million, four hundred one thousand, seventy-two".