655620266216 has 16 divisors (see below), whose sum is σ = 1244098699200. Its totient is φ = 323860613104.

The previous prime is 655620266177. The next prime is 655620266261. The reversal of 655620266216 is 612662026556.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 493689296 + ... + 493690623.

It is an arithmetic number, because the mean of its divisors is an integer number (77756168700).

Almost surely, 2^655620266216 is an apocalyptic number.

It is an amenable number.

655620266216 is a deficient number, since it is larger than the sum of its proper divisors (588478432984).

655620266216 is a wasteful number, since it uses less digits than its factorization.

655620266216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987380008 (or 987380004 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 655620266216 in words is "six hundred fifty-five billion, six hundred twenty million, two hundred sixty-six thousand, two hundred sixteen".