656312405054356 has 24 divisors (see below), whose sum is σ = 1171730061993960. Its totient is φ = 321597646605312.

The previous prime is 656312405054219. The next prime is 656312405054363. The reversal of 656312405054356 is 653450504213656.

It is a happy number.

656312405054356 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3187117562500 + 653125287491856 = 1785250^2 + 25556316^2 .

It is a super-3 number, since 3×656312405054356³ (a number of 45 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 656312405054297 and 656312405054306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8157367611 + ... + 8157448066.

It is an arithmetic number, because the mean of its divisors is an integer number (48822085916415).

Almost surely, 2^{656312405054356} is an apocalyptic number.

It is an amenable number.

656312405054356 is a deficient number, since it is larger than the sum of its proper divisors (515417656939604).

656312405054356 is a wasteful number, since it uses less digits than its factorization.

656312405054356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16314815883 (or 16314815881 counting only the distinct ones).

The product of its (nonzero) digits is 38880000, while the sum is 55.

The spelling of 656312405054356 in words is "six hundred fifty-six trillion, three hundred twelve billion, four hundred five million, fifty-four thousand, three hundred fifty-six".