16554475242172 has 48 divisors (see below), whose sum is σ = 34477464107520. Its totient is φ = 6804762552000.

The previous prime is 16554475242161. The next prime is 16554475242203. The reversal of 16554475242172 is 27124257445561.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67384954 + ... + 67630177.

It is an arithmetic number, because the mean of its divisors is an integer number (718280502240).

Almost surely, 2^{16554475242172} is an apocalyptic number.

It is an amenable number.

16554475242172 is an abundant number, since it is smaller than the sum of its proper divisors (17922988865348).

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

16554475242172 is a wasteful number, since it uses less digits than its factorization.

16554475242172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135015322 (or 135015320 counting only the distinct ones).

The product of its digits is 18816000, while the sum is 55.

The spelling of 16554475242172 in words is "sixteen trillion, five hundred fifty-four billion, four hundred seventy-five million, two hundred forty-two thousand, one hundred seventy-two".