16556650165616 has 40 divisors (see below), whose sum is σ = 34994987812848. Its totient is φ = 7525696320000.

The previous prime is 16556650165607. The next prime is 16556650165661. The reversal of 16556650165616 is 61656105665561.

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 7 ways as a sum of consecutive naturals, for example, 34759466 + ... + 35232566.

Almost surely, 2^{16556650165616} is an apocalyptic number.

16556650165616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16556650165616 is an abundant number, since it is smaller than the sum of its proper divisors (18438337647232).

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

16556650165616 is a wasteful number, since it uses less digits than its factorization.

16556650165616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671961 (or 671955 counting only the distinct ones).

The product of its (nonzero) digits is 29160000, while the sum is 59.

The spelling of 16556650165616 in words is "sixteen trillion, five hundred fifty-six billion, six hundred fifty million, one hundred sixty-five thousand, six hundred sixteen".