204065447190 has 32 divisors (see below), whose sum is σ = 534280444416. Its totient is φ = 49470411360.

The previous prime is 204065447171. The next prime is 204065447239. The reversal of 204065447190 is 91744560402.

It is a super-2 number, since 2×204065447190² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309189742 + ... + 309190401.

It is an arithmetic number, because the mean of its divisors is an integer number (16696263888).

Almost surely, 2^204065447190 is an apocalyptic number.

204065447190 is an abundant number, since it is smaller than the sum of its proper divisors (330214997226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204065447190 is a wasteful number, since it uses less digits than its factorization.

204065447190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618380164.

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 204065447190 in words is "two hundred four billion, sixty-five million, four hundred forty-seven thousand, one hundred ninety".