16676400661700 has 72 divisors (see below), whose sum is σ = 39441001531008. Its totient is φ = 6083254177920.

The previous prime is 16676400661663. The next prime is 16676400661721. The reversal of 16676400661700 is 716600467661.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77169212 + ... + 77385011.

Almost surely, 2^{16676400661700} is an apocalyptic number.

16676400661700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16676400661700 is an abundant number, since it is smaller than the sum of its proper divisors (22764600869308).

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

16676400661700 is a wasteful number, since it uses less digits than its factorization.

16676400661700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154554333 (or 154554326 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 50.

The spelling of 16676400661700 in words is "sixteen trillion, six hundred seventy-six billion, four hundred million, six hundred sixty-one thousand, seven hundred".