452520661401 has 12 divisors (see below), whose sum is σ = 653693944228. Its totient is φ = 301655984544.

The previous prime is 452520661379. The next prime is 452520661403. The reversal of 452520661401 is 104166025254.

452520661401 is a `hidden beast` number, since 45 + 2 + 5 + 206 + 6 + 1 + 401 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 122763341376 + 329757320025 = 350376^2 + 574245^2 .

It is not a de Polignac number, because 452520661401 - 2¹⁰ = 452520660377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (452520661403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1920490 + ... + 2143203.

Almost surely, 2^452520661401 is an apocalyptic number.

It is an amenable number.

452520661401 is a deficient number, since it is larger than the sum of its proper divisors (201173282827).

452520661401 is a wasteful number, since it uses less digits than its factorization.

452520661401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4076072 (or 4076069 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

Adding to 452520661401 its reverse (104166025254), we get a palindrome (556686686655).

The spelling of 452520661401 in words is "four hundred fifty-two billion, five hundred twenty million, six hundred sixty-one thousand, four hundred one".