16554475222772 has 6 divisors (see below), whose sum is σ = 28970331639858. Its totient is φ = 8277237611384.

The previous prime is 16554475222741. The next prime is 16554475222787. The reversal of 16554475222772 is 27722257445561.

It can be written as a sum of positive squares in only one way, i.e., 8779155665296 + 7775319557476 = 2962964^2 + 2788426^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2069309402843 + ... + 2069309402850.

It is an arithmetic number, because the mean of its divisors is an integer number (4828388606643).

Almost surely, 2^{16554475222772} is an apocalyptic number.

It is an amenable number.

16554475222772 is a deficient number, since it is larger than the sum of its proper divisors (12415856417086).

16554475222772 is a wasteful number, since it uses less digits than its factorization.

16554475222772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4138618805697 (or 4138618805695 counting only the distinct ones).

The product of its digits is 65856000, while the sum is 59.

The spelling of 16554475222772 in words is "sixteen trillion, five hundred fifty-four billion, four hundred seventy-five million, two hundred twenty-two thousand, seven hundred seventy-two".