201434434555 has 16 divisors (see below), whose sum is σ = 254593637280. Its totient is φ = 152576013312.

The previous prime is 201434434541. The next prime is 201434434567. The reversal of 201434434555 is 555434434102.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201434434555 is a prime.

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, 463524 + ... + 785953.

It is an arithmetic number, because the mean of its divisors is an integer number (15912102330).

Almost surely, 2^201434434555 is an apocalyptic number.

201434434555 is a deficient number, since it is larger than the sum of its proper divisors (53159202725).

201434434555 is a wasteful number, since it uses less digits than its factorization.

201434434555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251198.

The product of its (nonzero) digits is 576000, while the sum is 40.

Adding to 201434434555 its reverse (555434434102), we get a palindrome (756868868657).

The spelling of 201434434555 in words is "two hundred one billion, four hundred thirty-four million, four hundred thirty-four thousand, five hundred fifty-five".