16205767320864 has 192 divisors, whose sum is σ = 49147906913280. Its totient is φ = 4627214085120.

The previous prime is 16205767320803. The next prime is 16205767320889. The reversal of 16205767320864 is 46802376750261.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3352059 + ... + 6606650.

It is an arithmetic number, because the mean of its divisors is an integer number (255978681840).

Almost surely, 2^{16205767320864} is an apocalyptic number.

It is an amenable number.

16205767320864 is an abundant number, since it is smaller than the sum of its proper divisors (32942139592416).

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

16205767320864 is a wasteful number, since it uses less digits than its factorization.

16205767320864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9958823 (or 9958815 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 57.

The spelling of 16205767320864 in words is "sixteen trillion, two hundred five billion, seven hundred sixty-seven million, three hundred twenty thousand, eight hundred sixty-four".