16387072685 has 8 divisors (see below), whose sum is σ = 19666589280. Its totient is φ = 13108256784.

The previous prime is 16387072673. The next prime is 16387072693. The reversal of 16387072685 is 58627078361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16387072685 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122267 + ... + 218456.

It is an arithmetic number, because the mean of its divisors is an integer number (2458323660).

Almost surely, 2^16387072685 is an apocalyptic number.

It is an amenable number.

16387072685 is a deficient number, since it is larger than the sum of its proper divisors (3279516595).

16387072685 is an equidigital number, since it uses as much as digits as its factorization.

16387072685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350347.

The product of its (nonzero) digits is 3386880, while the sum is 53.

The spelling of 16387072685 in words is "sixteen billion, three hundred eighty-seven million, seventy-two thousand, six hundred eighty-five".