453120066721 has 4 divisors (see below), whose sum is σ = 517851504832. Its totient is φ = 388388628612.

The previous prime is 453120066709. The next prime is 453120066733. The reversal of 453120066721 is 127660021354.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (453120066709) and next prime (453120066733).

It is a cyclic number.

It is not a de Polignac number, because 453120066721 - 2⁵ = 453120066689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (453120066121) 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, 32365719045 + ... + 32365719058.

It is an arithmetic number, because the mean of its divisors is an integer number (129462876208).

Almost surely, 2^453120066721 is an apocalyptic number.

It is an amenable number.

453120066721 is a deficient number, since it is larger than the sum of its proper divisors (64731438111).

453120066721 is an equidigital number, since it uses as much as digits as its factorization.

453120066721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64731438110.

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 453120066721 in words is "four hundred fifty-three billion, one hundred twenty million, sixty-six thousand, seven hundred twenty-one".