16556803502386 has 16 divisors (see below), whose sum is σ = 28388274083136. Its totient is φ = 7094477338416.

The previous prime is 16556803502377. The next prime is 16556803502441. The reversal of 16556803502386 is 68320530865561.

16556803502386 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×16556803502386⁴ (a number of 54 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16556803502386.

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, 107886516 + ... + 108039871.

It is an arithmetic number, because the mean of its divisors is an integer number (1774267130196).

Almost surely, 2^{16556803502386} is an apocalyptic number.

16556803502386 is a deficient number, since it is larger than the sum of its proper divisors (11831470580750).

16556803502386 is a wasteful number, since it uses less digits than its factorization.

16556803502386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215931873.

The product of its (nonzero) digits is 31104000, while the sum is 58.

The spelling of 16556803502386 in words is "sixteen trillion, five hundred fifty-six billion, eight hundred three million, five hundred two thousand, three hundred eighty-six".