7320212655 has 48 divisors (see below), whose sum is σ = 13661597664. Its totient is φ = 3337286400.

The previous prime is 7320212651. The next prime is 7320212671. The reversal of 7320212655 is 5562120237.

It is not a de Polignac number, because 7320212655 - 2² = 7320212651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7320212651) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 260805 + ... + 287505.

It is an arithmetic number, because the mean of its divisors is an integer number (284616618).

Almost surely, 2^7320212655 is an apocalyptic number.

7320212655 is a deficient number, since it is larger than the sum of its proper divisors (6341385009).

7320212655 is a wasteful number, since it uses less digits than its factorization.

7320212655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27096 (or 27089 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 7320212655 is about 85558.2413038043. The cubic root of 7320212655 is about 1941.6661789393. Note that the first 3 decimals are identical.

The spelling of 7320212655 in words is "seven billion, three hundred twenty million, two hundred twelve thousand, six hundred fifty-five".