171212055602 has 16 divisors (see below), whose sum is σ = 293511978432. Its totient is φ = 73375195920.

The previous prime is 171212055589. The next prime is 171212055611. The reversal of 171212055602 is 206550212171.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1037777 + ... + 1191387.

It is an arithmetic number, because the mean of its divisors is an integer number (18344498652).

Almost surely, 2^171212055602 is an apocalyptic number.

171212055602 is a deficient number, since it is larger than the sum of its proper divisors (122299922830).

171212055602 is a wasteful number, since it uses less digits than its factorization.

171212055602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233233.

The product of its (nonzero) digits is 8400, while the sum is 32.

Adding to 171212055602 its reverse (206550212171), we get a palindrome (377762267773).

The spelling of 171212055602 in words is "one hundred seventy-one billion, two hundred twelve million, fifty-five thousand, six hundred two".