16556002642446 has 16 divisors (see below), whose sum is σ = 33296988556800. Its totient is φ = 5487837002168.

The previous prime is 16556002642429. The next prime is 16556002642457. The reversal of 16556002642446 is 64424620065561.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7707635166 + ... + 7707637313.

It is an arithmetic number, because the mean of its divisors is an integer number (2081061784800).

Almost surely, 2^{16556002642446} is an apocalyptic number.

16556002642446 is an abundant number, since it is smaller than the sum of its proper divisors (16740985914354).

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

16556002642446 is a wasteful number, since it uses less digits than its factorization.

16556002642446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15415272663.

The product of its (nonzero) digits is 8294400, while the sum is 51.

The spelling of 16556002642446 in words is "sixteen trillion, five hundred fifty-six billion, two million, six hundred forty-two thousand, four hundred forty-six".