656216011093 has 12 divisors (see below), whose sum is σ = 703482929380. Its totient is φ = 611948846592.

The previous prime is 656216011049. The next prime is 656216011097. The reversal of 656216011093 is 390110612656.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 282946333329 + 373269677764 = 531927^2 + 610958^2 .

It is not a de Polignac number, because 656216011093 - 2⁹ = 656216010581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656216011097) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10384296 + ... + 10447297.

Almost surely, 2^656216011093 is an apocalyptic number.

It is an amenable number.

656216011093 is a deficient number, since it is larger than the sum of its proper divisors (47266918287).

656216011093 is a wasteful number, since it uses less digits than its factorization.

656216011093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20831736 (or 20831719 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 40.

The spelling of 656216011093 in words is "six hundred fifty-six billion, two hundred sixteen million, eleven thousand, ninety-three".