16660987200 has 1680 divisors, whose sum is σ = 76830082560. Its totient is φ = 3483648000.

The previous prime is 16660987199. The next prime is 16660987219. The reversal of 16660987200 is 278906661.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 537451185 + ... + 537451215.

It is an arithmetic number, because the mean of its divisors is an integer number (45732192).

Almost surely, 2^16660987200 is an apocalyptic number.

16660987200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16660987200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38415041280).

16660987200 is an abundant number, since it is smaller than the sum of its proper divisors (60169095360).

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

16660987200 is a wasteful number, since it uses less digits than its factorization.

16660987200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 16660987200 in words is "sixteen billion, six hundred sixty million, nine hundred eighty-seven thousand, two hundred".