455723243665 has 12 divisors (see below), whose sum is σ = 560531466972. Its totient is φ = 355686427520.

The previous prime is 455723243653. The next prime is 455723243681. The reversal of 455723243665 is 566342327554.

It can be written as a sum of positive squares in 6 ways, for example, as 28657072656 + 427066171009 = 169284^2 + 653503^2 .

It is not a de Polignac number, because 455723243665 - 2⁷ = 455723243537 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27101842 + ... + 27118651.

It is an arithmetic number, because the mean of its divisors is an integer number (46710955581).

Almost surely, 2^455723243665 is an apocalyptic number.

It is an amenable number.

455723243665 is a deficient number, since it is larger than the sum of its proper divisors (104808223307).

455723243665 is an equidigital number, since it uses as much as digits as its factorization.

455723243665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54220580 (or 54220539 counting only the distinct ones).

The product of its digits is 18144000, while the sum is 52.

The spelling of 455723243665 in words is "four hundred fifty-five billion, seven hundred twenty-three million, two hundred forty-three thousand, six hundred sixty-five".