445660453021 has 8 divisors (see below), whose sum is σ = 513214219584. Its totient is φ = 379078683360.

The previous prime is 445660452977. The next prime is 445660453103. The reversal of 445660453021 is 120354066544.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 445660453021 - 2⁹ = 445660452509 is a prime.

It is a super-2 number, since 2×445660453021² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445660459021) 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 7 ways as a sum of consecutive naturals, for example, 242998240 + ... + 243000073.

It is an arithmetic number, because the mean of its divisors is an integer number (64151777448).

Almost surely, 2^445660453021 is an apocalyptic number.

It is an amenable number.

445660453021 is a deficient number, since it is larger than the sum of its proper divisors (67553766563).

445660453021 is a wasteful number, since it uses less digits than its factorization.

445660453021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485998451.

The product of its (nonzero) digits is 345600, while the sum is 40.

The spelling of 445660453021 in words is "four hundred forty-five billion, six hundred sixty million, four hundred fifty-three thousand, twenty-one".