213663383156 has 6 divisors (see below), whose sum is σ = 373910920530. Its totient is φ = 106831691576.

The previous prime is 213663383137. The next prime is 213663383177. The reversal of 213663383156 is 651383366312.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 190895591056 + 22767792100 = 436916^2 + 150890^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 213663383156.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26707922891 + ... + 26707922898.

It is an arithmetic number, because the mean of its divisors is an integer number (62318486755).

Almost surely, 2^213663383156 is an apocalyptic number.

It is an amenable number.

213663383156 is a deficient number, since it is larger than the sum of its proper divisors (160247537374).

213663383156 is a wasteful number, since it uses less digits than its factorization.

213663383156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53415845793 (or 53415845791 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 47.

The spelling of 213663383156 in words is "two hundred thirteen billion, six hundred sixty-three million, three hundred eighty-three thousand, one hundred fifty-six".