204602215671 has 48 divisors (see below), whose sum is σ = 344901383424. Its totient is φ = 114463590912.

The previous prime is 204602215627. The next prime is 204602215703. The reversal of 204602215671 is 176512206402.

It is a happy number.

204602215671 is a `hidden beast` number, since 20 + 4 + 602 + 21 + 5 + 6 + 7 + 1 = 666.

It is not a de Polignac number, because 204602215671 - 2⁹ = 204602215159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204602215471) by changing a digit.

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 in 47 ways as a sum of consecutive naturals, for example, 539335 + ... + 836711.

It is an arithmetic number, because the mean of its divisors is an integer number (7185445488).

Almost surely, 2^204602215671 is an apocalyptic number.

204602215671 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

204602215671 is a deficient number, since it is larger than the sum of its proper divisors (140299167753).

204602215671 is a wasteful number, since it uses less digits than its factorization.

204602215671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297620 (or 297617 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 204602215671 in words is "two hundred four billion, six hundred two million, two hundred fifteen thousand, six hundred seventy-one".