452616163521 has 16 divisors (see below), whose sum is σ = 609756035328. Its totient is φ = 298616013200.

The previous prime is 452616163429. The next prime is 452616163523. The reversal of 452616163521 is 125361616254.

It is a cyclic number.

It is not a de Polignac number, because 452616163521 - 2¹⁸ = 452615901377 is a prime.

It is a super-2 number, since 2×452616163521² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (452616163523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 414375 + ... + 1037756.

It is an arithmetic number, because the mean of its divisors is an integer number (38109752208).

Almost surely, 2^452616163521 is an apocalyptic number.

It is an amenable number.

452616163521 is a deficient number, since it is larger than the sum of its proper divisors (157139871807).

452616163521 is a wasteful number, since it uses less digits than its factorization.

452616163521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1453212.

The product of its digits is 259200, while the sum is 42.

Adding to 452616163521 its reverse (125361616254), we get a palindrome (577977779775).

The spelling of 452616163521 in words is "four hundred fifty-two billion, six hundred sixteen million, one hundred sixty-three thousand, five hundred twenty-one".