205389575104 has 56 divisors (see below), whose sum is σ = 493193892960. Its totient is φ = 82846212096.

The previous prime is 205389575093. The next prime is 205389575119. The reversal of 205389575104 is 401575983502.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×205389575104² (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 7 ways as a sum of consecutive naturals, for example, 13476469 + ... + 13491700.

Almost surely, 2^205389575104 is an apocalyptic number.

It is an amenable number.

205389575104 is an abundant number, since it is smaller than the sum of its proper divisors (287804317856).

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

205389575104 is a wasteful number, since it uses less digits than its factorization.

205389575104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26968205 (or 26968195 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 49.

The spelling of 205389575104 in words is "two hundred five billion, three hundred eighty-nine million, five hundred seventy-five thousand, one hundred four".