204557401612 has 6 divisors (see below), whose sum is σ = 357975452828. Its totient is φ = 102278700804.

The previous prime is 204557401571. The next prime is 204557401613. The reversal of 204557401612 is 216104755402.

It is not an unprimeable number, because it can be changed into a prime (204557401613) by changing a digit.

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 as a sum of consecutive naturals, namely, 25569675198 + ... + 25569675205.

Almost surely, 2^204557401612 is an apocalyptic number.

It is an amenable number.

204557401612 is a deficient number, since it is larger than the sum of its proper divisors (153418051216).

204557401612 is a wasteful number, since it uses less digits than its factorization.

204557401612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51139350407 (or 51139350405 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 37.

The spelling of 204557401612 in words is "two hundred four billion, five hundred fifty-seven million, four hundred one thousand, six hundred twelve".