205006470218776 has 8 divisors (see below), whose sum is σ = 384387131660220. Its totient is φ = 102503235109384.

The previous prime is 205006470218761. The next prime is 205006470218813. The reversal of 205006470218776 is 677812074600502.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12812904388666 + ... + 12812904388681.

Almost surely, 2^{205006470218776} is an apocalyptic number.

It is an amenable number.

205006470218776 is a deficient number, since it is larger than the sum of its proper divisors (179380661441444).

205006470218776 is a wasteful number, since it uses less digits than its factorization.

205006470218776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25625808777353 (or 25625808777349 counting only the distinct ones).

The product of its (nonzero) digits is 7902720, while the sum is 55.

The spelling of 205006470218776 in words is "two hundred five trillion, six billion, four hundred seventy million, two hundred eighteen thousand, seven hundred seventy-six".