213053316650 has 12 divisors (see below), whose sum is σ = 396279169062. Its totient is φ = 85221326640.

The previous prime is 213053316643. The next prime is 213053316659. The reversal of 213053316650 is 56613350312.

It can be written as a sum of positive squares in 3 ways, for example, as 77300124841 + 135753191809 = 278029^2 + 368447^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 213053316650.

It is not an unprimeable number, because it can be changed into a prime (213053316659) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2130533117 + ... + 2130533216.

Almost surely, 2^213053316650 is an apocalyptic number.

213053316650 is a deficient number, since it is larger than the sum of its proper divisors (183225852412).

213053316650 is a wasteful number, since it uses less digits than its factorization.

213053316650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4261066345 (or 4261066340 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 35.

Adding to 213053316650 its reverse (56613350312), we get a palindrome (269666666962).

The spelling of 213053316650 in words is "two hundred thirteen billion, fifty-three million, three hundred sixteen thousand, six hundred fifty".