16546456661000 has 96 divisors (see below), whose sum is σ = 45040130530200. Its totient is φ = 5673070838400.

The previous prime is 16546456660991. The next prime is 16546456661029. The reversal of 16546456661000 is 16665464561.

It can be written as a sum of positive squares in 4 ways, for example, as 3365969976964 + 13180486684036 = 1834658^2 + 3630494^2 .

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a self number, because there is not a number n which added to its sum of digits gives 16546456661000.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 168792395 + ... + 168890394.

Almost surely, 2^{16546456661000} is an apocalyptic number.

16546456661000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16546456661000 is an abundant number, since it is smaller than the sum of its proper divisors (28493673869200).

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

16546456661000 is a wasteful number, since it uses less digits than its factorization.

16546456661000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337682824 (or 337682803 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 50.

The spelling of 16546456661000 in words is "sixteen trillion, five hundred forty-six billion, four hundred fifty-six million, six hundred sixty-one thousand".