205696376404 has 12 divisors (see below), whose sum is σ = 359971957044. Its totient is φ = 102847245824.

The previous prime is 205696376393. The next prime is 205696376429. The reversal of 205696376404 is 404673696502.

It can be written as a sum of positive squares in 2 ways, for example, as 118790515600 + 86905860804 = 344660^2 + 294798^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 537114 + ... + 836590.

It is an arithmetic number, because the mean of its divisors is an integer number (29997663087).

Almost surely, 2^205696376404 is an apocalyptic number.

It is an amenable number.

205696376404 is a deficient number, since it is larger than the sum of its proper divisors (154275580640).

205696376404 is a wasteful number, since it uses less digits than its factorization.

205696376404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471194 (or 471192 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 52.

The spelling of 205696376404 in words is "two hundred five billion, six hundred ninety-six million, three hundred seventy-six thousand, four hundred four".