205034067172 has 12 divisors (see below), whose sum is σ = 391428673776. Its totient is φ = 93197303240.

The previous prime is 205034067137. The next prime is 205034067193. The reversal of 205034067172 is 271760430502.

It is a happy number.

205034067172 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2329932538 + ... + 2329932625.

It is an arithmetic number, because the mean of its divisors is an integer number (32619056148).

Almost surely, 2^205034067172 is an apocalyptic number.

205034067172 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

205034067172 is a deficient number, since it is larger than the sum of its proper divisors (186394606604).

205034067172 is a wasteful number, since it uses less digits than its factorization.

205034067172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4659865178 (or 4659865176 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 37.

Adding to 205034067172 its reverse (271760430502), we get a palindrome (476794497674).

The spelling of 205034067172 in words is "two hundred five billion, thirty-four million, sixty-seven thousand, one hundred seventy-two".