204411550642 has 16 divisors (see below), whose sum is σ = 330260616000. Its totient is φ = 94327409232.

The previous prime is 204411550633. The next prime is 204411550687. The reversal of 204411550642 is 246055114402.

It is a super-2 number, since 2×204411550642² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 204411550598 and 204411550607.

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 in 7 ways as a sum of consecutive naturals, for example, 529392 + ... + 830107.

It is an arithmetic number, because the mean of its divisors is an integer number (20641288500).

Almost surely, 2^204411550642 is an apocalyptic number.

204411550642 is a deficient number, since it is larger than the sum of its proper divisors (125849065358).

204411550642 is a wasteful number, since it uses less digits than its factorization.

204411550642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1365297.

The product of its (nonzero) digits is 38400, while the sum is 34.

The spelling of 204411550642 in words is "two hundred four billion, four hundred eleven million, five hundred fifty thousand, six hundred forty-two".