655216107 has 32 divisors (see below), whose sum is σ = 1082145792. Its totient is φ = 343384704.

The previous prime is 655216097. The next prime is 655216109. The reversal of 655216107 is 701612556.

It is not a de Polignac number, because 655216107 - 2⁶ = 655216043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (655216109) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35218 + ... + 50504.

It is an arithmetic number, because the mean of its divisors is an integer number (33817056).

Almost surely, 2^655216107 is an apocalyptic number.

655216107 is a deficient number, since it is larger than the sum of its proper divisors (426929685).

655216107 is a wasteful number, since it uses less digits than its factorization.

655216107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15467.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 655216107 is about 25597.1894355611. The cubic root of 655216107 is about 868.5500607668.

The spelling of 655216107 in words is "six hundred fifty-five million, two hundred sixteen thousand, one hundred seven".