656213205453 has 32 divisors (see below), whose sum is σ = 965518202880. Its totient is φ = 393859253760.

The previous prime is 656213205437. The next prime is 656213205457. The reversal of 656213205453 is 354502312656.

It is a happy number.

656213205453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 656213205453 - 2⁴ = 656213205437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656213205457) 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, 5591188 + ... + 5707346.

It is an arithmetic number, because the mean of its divisors is an integer number (30172443840).

Almost surely, 2^656213205453 is an apocalyptic number.

It is an amenable number.

656213205453 is a deficient number, since it is larger than the sum of its proper divisors (309304997427).

656213205453 is a wasteful number, since it uses less digits than its factorization.

656213205453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119749.

The product of its (nonzero) digits is 648000, while the sum is 42.

The spelling of 656213205453 in words is "six hundred fifty-six billion, two hundred thirteen million, two hundred five thousand, four hundred fifty-three".