656017201 has 16 divisors (see below), whose sum is σ = 793062144. Its totient is φ = 530475264.

The previous prime is 656017189. The next prime is 656017213. The reversal of 656017201 is 102710656.

It is an interprime number because it is at equal distance from previous prime (656017189) and next prime (656017213).

It is a cyclic number.

It is not a de Polignac number, because 656017201 - 2⁵ = 656017169 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 656017201.

It is not an unprimeable number, because it can be changed into a prime (656017001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16156 + ... + 39661.

It is an arithmetic number, because the mean of its divisors is an integer number (49566384).

Almost surely, 2^656017201 is an apocalyptic number.

It is an amenable number.

656017201 is a deficient number, since it is larger than the sum of its proper divisors (137044943).

656017201 is a wasteful number, since it uses less digits than its factorization.

656017201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55920.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 656017201 is about 25612.8327406400. The cubic root of 656017201 is about 868.9038915412.

Adding to 656017201 its reverse (102710656), we get a palindrome (758727857).

The spelling of 656017201 in words is "six hundred fifty-six million, seventeen thousand, two hundred one".