16805157512 has 32 divisors (see below), whose sum is σ = 37018356480. Its totient is φ = 7051114560.

The previous prime is 16805157503. The next prime is 16805157553. The reversal of 16805157512 is 21575150861.

16805157512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 16805157512.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7343768 + ... + 7346055.

It is an arithmetic number, because the mean of its divisors is an integer number (1156823640).

Almost surely, 2^16805157512 is an apocalyptic number.

It is an amenable number.

16805157512 is an abundant number, since it is smaller than the sum of its proper divisors (20213198968).

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

16805157512 is a wasteful number, since it uses less digits than its factorization.

16805157512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14689853 (or 14689849 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 41.

The spelling of 16805157512 in words is "sixteen billion, eight hundred five million, one hundred fifty-seven thousand, five hundred twelve".