455716736273581 has 2 divisors, whose sum is σ = 455716736273582. Its totient is φ = 455716736273580.

The previous prime is 455716736273551. The next prime is 455716736273593. The reversal of 455716736273581 is 185372637617554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 396898435736100 + 58818300537481 = 19922310^2 + 7669309^2 .

It is a cyclic number.

It is not a de Polignac number, because 455716736273581 - 2⁹ = 455716736273069 is a prime.

It is a super-2 number, since 2×455716736273581² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 455716736273581.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (455716736273531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227858368136790 + 227858368136791.

It is an arithmetic number, because the mean of its divisors is an integer number (227858368136791).

Almost surely, 2^{455716736273581} is an apocalyptic number.

It is an amenable number.

455716736273581 is a deficient number, since it is larger than the sum of its proper divisors (1).

455716736273581 is an equidigital number, since it uses as much as digits as its factorization.

455716736273581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 889056000, while the sum is 70.

The spelling of 455716736273581 in words is "four hundred fifty-five trillion, seven hundred sixteen billion, seven hundred thirty-six million, two hundred seventy-three thousand, five hundred eighty-one".