16812578057044 has 48 divisors (see below), whose sum is σ = 36683380339200. Its totient is φ = 6550106542560.

The previous prime is 16812578056993. The next prime is 16812578057089. The reversal of 16812578057044 is 44075087521861.

It is a self number, because there is not a number n which added to its sum of digits gives 16812578057044.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7201039 + ... + 9245545.

It is an arithmetic number, because the mean of its divisors is an integer number (764237090400).

Almost surely, 2^{16812578057044} is an apocalyptic number.

16812578057044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

16812578057044 is an abundant number, since it is smaller than the sum of its proper divisors (19870802282156).

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

16812578057044 is a wasteful number, since it uses less digits than its factorization.

16812578057044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2071228 (or 2071226 counting only the distinct ones).

The product of its (nonzero) digits is 15052800, while the sum is 58.

The spelling of 16812578057044 in words is "sixteen trillion, eight hundred twelve billion, five hundred seventy-eight million, fifty-seven thousand, forty-four".