653533214212 has 6 divisors (see below), whose sum is σ = 1143683124878. Its totient is φ = 326766607104.

The previous prime is 653533214177. The next prime is 653533214227. The reversal of 653533214212 is 212412335356.

It can be written as a sum of positive squares in only one way, i.e., 457278898176 + 196254316036 = 676224^2 + 443006^2 .

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 as a sum of consecutive naturals, namely, 81691651773 + ... + 81691651780.

Almost surely, 2^653533214212 is an apocalyptic number.

It is an amenable number.

653533214212 is a deficient number, since it is larger than the sum of its proper divisors (490149910666).

653533214212 is a wasteful number, since it uses less digits than its factorization.

653533214212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163383303557 (or 163383303555 counting only the distinct ones).

The product of its digits is 129600, while the sum is 37.

Adding to 653533214212 its reverse (212412335356), we get a palindrome (865945549568).

The spelling of 653533214212 in words is "six hundred fifty-three billion, five hundred thirty-three million, two hundred fourteen thousand, two hundred twelve".