16205462556 has 12 divisors (see below), whose sum is σ = 37812745992. Its totient is φ = 5401820848.

The previous prime is 16205462491. The next prime is 16205462569. The reversal of 16205462556 is 65526450261.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 675227595 + ... + 675227618.

It is an arithmetic number, because the mean of its divisors is an integer number (3151062166).

Almost surely, 2^16205462556 is an apocalyptic number.

It is an amenable number.

16205462556 is an abundant number, since it is smaller than the sum of its proper divisors (21607283436).

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

16205462556 is a wasteful number, since it uses less digits than its factorization.

16205462556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350455220 (or 1350455218 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 42.

The spelling of 16205462556 in words is "sixteen billion, two hundred five million, four hundred sixty-two thousand, five hundred fifty-six".