452311645203661 has 4 divisors (see below), whose sum is σ = 471977368908192. Its totient is φ = 432645921499132.

The previous prime is 452311645203647. The next prime is 452311645203701. The reversal of 452311645203661 is 166302546113254.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 452311645203661 - 2¹⁵ = 452311645170893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452311645203601) 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, 9832861852231 + ... + 9832861852276.

It is an arithmetic number, because the mean of its divisors is an integer number (117994342227048).

Almost surely, 2^{452311645203661} is an apocalyptic number.

It is an amenable number.

452311645203661 is a deficient number, since it is larger than the sum of its proper divisors (19665723704531).

452311645203661 is a wasteful number, since it uses less digits than its factorization.

452311645203661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19665723704530.

The product of its (nonzero) digits is 3110400, while the sum is 49.

The spelling of 452311645203661 in words is "four hundred fifty-two trillion, three hundred eleven billion, six hundred forty-five million, two hundred three thousand, six hundred sixty-one".