16556016226672 has 80 divisors (see below), whose sum is σ = 37943906434560. Its totient is φ = 6924325706496.

The previous prime is 16556016226669. The next prime is 16556016226693. The reversal of 16556016226672 is 27662261065561.

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 15 ways as a sum of consecutive naturals, for example, 90980308 + ... + 91162099.

It is an arithmetic number, because the mean of its divisors is an integer number (474298830432).

Almost surely, 2^{16556016226672} is an apocalyptic number.

It is an amenable number.

16556016226672 is an abundant number, since it is smaller than the sum of its proper divisors (21387890207888).

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

16556016226672 is a wasteful number, since it uses less digits than its factorization.

16556016226672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182142470 (or 182142464 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 55.

The spelling of 16556016226672 in words is "sixteen trillion, five hundred fifty-six billion, sixteen million, two hundred twenty-six thousand, six hundred seventy-two".