656364541439 has 4 divisors (see below), whose sum is σ = 690910043640. Its totient is φ = 621819039240.

The previous prime is 656364541397. The next prime is 656364541463. The reversal of 656364541439 is 934145463656.

656364541439 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 656364541439 - 2¹⁶ = 656364475903 is a prime.

It is a super-2 number, since 2×656364541439² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656364541489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17272751072 + ... + 17272751109.

It is an arithmetic number, because the mean of its divisors is an integer number (172727510910).

Almost surely, 2^656364541439 is an apocalyptic number.

656364541439 is a deficient number, since it is larger than the sum of its proper divisors (34545502201).

656364541439 is a wasteful number, since it uses less digits than its factorization.

656364541439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34545502200.

The product of its digits is 27993600, while the sum is 56.

The spelling of 656364541439 in words is "six hundred fifty-six billion, three hundred sixty-four million, five hundred forty-one thousand, four hundred thirty-nine".