16326433310556 has 12 divisors (see below), whose sum is σ = 38095011057992. Its totient is φ = 5442144436848.

The previous prime is 16326433310549. The next prime is 16326433310557. The reversal of 16326433310556 is 65501333462361.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16326433310557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 680268054595 + ... + 680268054618.

Almost surely, 2^{16326433310556} is an apocalyptic number.

It is an amenable number.

16326433310556 is an abundant number, since it is smaller than the sum of its proper divisors (21768577747436).

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

16326433310556 is a wasteful number, since it uses less digits than its factorization.

16326433310556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360536109220 (or 1360536109218 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 48.

The spelling of 16326433310556 in words is "sixteen trillion, three hundred twenty-six billion, four hundred thirty-three million, three hundred ten thousand, five hundred fifty-six".