205270948646 has 24 divisors (see below), whose sum is σ = 319710792960. Its totient is φ = 98841258656.

The previous prime is 205270948633. The next prime is 205270948657. The reversal of 205270948646 is 646849072502.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 497435 + ... + 811161.

It is an arithmetic number, because the mean of its divisors is an integer number (13321283040).

Almost surely, 2^205270948646 is an apocalyptic number.

205270948646 is a deficient number, since it is larger than the sum of its proper divisors (114439844314).

205270948646 is a wasteful number, since it uses less digits than its factorization.

205270948646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314176 (or 314147 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 53.

The spelling of 205270948646 in words is "two hundred five billion, two hundred seventy million, nine hundred forty-eight thousand, six hundred forty-six".