16386856502 has 4 divisors (see below), whose sum is σ = 24580284756. Its totient is φ = 8193428250.

The previous prime is 16386856501. The next prime is 16386856511. The reversal of 16386856502 is 20565868361.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16386856501) by changing a digit.

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 as a sum of consecutive naturals, namely, 4096714124 + ... + 4096714127.

It is an arithmetic number, because the mean of its divisors is an integer number (6145071189).

Almost surely, 2^16386856502 is an apocalyptic number.

16386856502 is a deficient number, since it is larger than the sum of its proper divisors (8193428254).

16386856502 is an equidigital number, since it uses as much as digits as its factorization.

16386856502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8193428253.

The product of its (nonzero) digits is 2073600, while the sum is 50.

The spelling of 16386856502 in words is "sixteen billion, three hundred eighty-six million, eight hundred fifty-six thousand, five hundred two".