656011601101 has 16 divisors (see below), whose sum is σ = 680362991424. Its totient is φ = 632014406784.

The previous prime is 656011601099. The next prime is 656011601107. The reversal of 656011601101 is 101106110656.

It is a cyclic number.

It is not a de Polignac number, because 656011601101 - 2¹ = 656011601099 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 656011601101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656011601107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8485246 + ... + 8562208.

It is an arithmetic number, because the mean of its divisors is an integer number (42522686964).

Almost surely, 2^656011601101 is an apocalyptic number.

It is an amenable number.

656011601101 is a deficient number, since it is larger than the sum of its proper divisors (24351390323).

656011601101 is a wasteful number, since it uses less digits than its factorization.

656011601101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79260.

The product of its (nonzero) digits is 1080, while the sum is 28.

Adding to 656011601101 its reverse (101106110656), we get a palindrome (757117711757).

The spelling of 656011601101 in words is "six hundred fifty-six billion, eleven million, six hundred one thousand, one hundred one".