655022203406212 has 48 divisors (see below), whose sum is σ = 1151115767746560. Its totient is φ = 326134964994048.

The previous prime is 655022203406189. The next prime is 655022203406269. The reversal of 655022203406212 is 212604302220556.

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, 4079707728 + ... + 4079868280.

It is an arithmetic number, because the mean of its divisors is an integer number (23981578494720).

Almost surely, 2^{655022203406212} is an apocalyptic number.

It is an amenable number.

655022203406212 is a deficient number, since it is larger than the sum of its proper divisors (496093564340348).

655022203406212 is a wasteful number, since it uses less digits than its factorization.

655022203406212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165172 (or 165170 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 40.

Adding to 655022203406212 its reverse (212604302220556), we get a palindrome (867626505626768).

The spelling of 655022203406212 in words is "six hundred fifty-five trillion, twenty-two billion, two hundred three million, four hundred six thousand, two hundred twelve".