205394345232 has 20 divisors (see below), whose sum is σ = 530602058640. Its totient is φ = 68464781728.

The previous prime is 205394345231. The next prime is 205394345237. The reversal of 205394345232 is 232543493502.

It is a super-2 number, since 2×205394345232² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (205394345231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2139524382 + ... + 2139524477.

It is an arithmetic number, because the mean of its divisors is an integer number (26530102932).

Almost surely, 2^205394345232 is an apocalyptic number.

It is an amenable number.

205394345232 is an abundant number, since it is smaller than the sum of its proper divisors (325207713408).

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

205394345232 is a wasteful number, since it uses less digits than its factorization.

205394345232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4279048870 (or 4279048864 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 42.

The spelling of 205394345232 in words is "two hundred five billion, three hundred ninety-four million, three hundred forty-five thousand, two hundred thirty-two".