454721735665 has 16 divisors (see below), whose sum is σ = 557485845840. Its totient is φ = 355981824000.

The previous prime is 454721735581. The next prime is 454721735669. The reversal of 454721735665 is 566537127454.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 138873239649 + 315848496016 = 372657^2 + 562004^2 .

It is not a de Polignac number, because 454721735665 - 2¹¹ = 454721733617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (454721735669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5224086 + ... + 5310415.

It is an arithmetic number, because the mean of its divisors is an integer number (34842865365).

Almost surely, 2^454721735665 is an apocalyptic number.

It is an amenable number.

454721735665 is a deficient number, since it is larger than the sum of its proper divisors (102764110175).

454721735665 is a wasteful number, since it uses less digits than its factorization.

454721735665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10534692.

The product of its digits is 21168000, while the sum is 55.

The spelling of 454721735665 in words is "four hundred fifty-four billion, seven hundred twenty-one million, seven hundred thirty-five thousand, six hundred sixty-five".