201434434556 has 6 divisors (see below), whose sum is σ = 352510260480. Its totient is φ = 100717217276.

The previous prime is 201434434541. The next prime is 201434434567. The reversal of 201434434556 is 655434434102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25179304316 + ... + 25179304323.

It is an arithmetic number, because the mean of its divisors is an integer number (58751710080).

Almost surely, 2^201434434556 is an apocalyptic number.

It is an amenable number.

201434434556 is a deficient number, since it is larger than the sum of its proper divisors (151075825924).

201434434556 is a wasteful number, since it uses less digits than its factorization.

201434434556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50358608643 (or 50358608641 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 41.

Adding to 201434434556 its reverse (655434434102), we get a palindrome (856868868658).

The spelling of 201434434556 in words is "two hundred one billion, four hundred thirty-four million, four hundred thirty-four thousand, five hundred fifty-six".