16649287386800 has 60 divisors (see below), whose sum is σ = 40000375138776. Its totient is φ = 6659638003200.

The previous prime is 16649287386799. The next prime is 16649287386817. The reversal of 16649287386800 is 868378294661.

16649287386800 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45086915 + ... + 45454685.

Almost surely, 2^{16649287386800} is an apocalyptic number.

16649287386800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16649287386800 is an abundant number, since it is smaller than the sum of its proper divisors (23351087751976).

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

16649287386800 is a wasteful number, since it uses less digits than its factorization.

16649287386800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480966 (or 480955 counting only the distinct ones).

The product of its (nonzero) digits is 167215104, while the sum is 68.

The spelling of 16649287386800 in words is "sixteen trillion, six hundred forty-nine billion, two hundred eighty-seven million, three hundred eighty-six thousand, eight hundred".