16656116656050 has 36 divisors (see below), whose sum is σ = 44749433417130. Its totient is φ = 4441631108160.

The previous prime is 16656116656013. The next prime is 16656116656097. The reversal of 16656116656050 is 5065661165661.

16656116656050 is a `hidden beast` number, since 1 + 6 + 6 + 5 + 6 + 11 + 66 + 560 + 5 + 0 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 11633672607489 + 5022444048561 = 3410817^2 + 2241081^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 18506795835 + ... + 18506796734.

Almost surely, 2^{16656116656050} is an apocalyptic number.

16656116656050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16656116656050 is an abundant number, since it is smaller than the sum of its proper divisors (28093316761080).

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

16656116656050 is a wasteful number, since it uses less digits than its factorization.

16656116656050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37013592587 (or 37013592579 counting only the distinct ones).

The product of its (nonzero) digits is 5832000, while the sum is 54.

The spelling of 16656116656050 in words is "sixteen trillion, six hundred fifty-six billion, one hundred sixteen million, six hundred fifty-six thousand, fifty".