5656722506431 has 2 divisors, whose sum is σ = 5656722506432. Its totient is φ = 5656722506430.

The previous prime is 5656722506411. The next prime is 5656722506443. The reversal of 5656722506431 is 1346052276565.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5656722506431 - 2¹¹ = 5656722504383 is a prime.

It is a super-2 number, since 2×5656722506431² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5656722506411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2828361253215 + 2828361253216.

It is an arithmetic number, because the mean of its divisors is an integer number (2828361253216).

Almost surely, 2^{5656722506431} is an apocalyptic number.

5656722506431 is a deficient number, since it is larger than the sum of its proper divisors (1).

5656722506431 is an equidigital number, since it uses as much as digits as its factorization.

5656722506431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072000, while the sum is 52.

The spelling of 5656722506431 in words is "five trillion, six hundred fifty-six billion, seven hundred twenty-two million, five hundred six thousand, four hundred thirty-one".