445117020100421 has 16 divisors (see below), whose sum is σ = 458129823782400. Its totient is φ = 432338808789888.

The previous prime is 445117020100327. The next prime is 445117020100439. The reversal of 445117020100421 is 124001020711544.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445117020100421 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 (445117020103421) 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, 159294545 + ... + 162064758.

It is an arithmetic number, because the mean of its divisors is an integer number (28633113986400).

Almost surely, 2^{445117020100421} is an apocalyptic number.

It is an amenable number.

445117020100421 is a deficient number, since it is larger than the sum of its proper divisors (13012803681979).

445117020100421 is a wasteful number, since it uses less digits than its factorization.

445117020100421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321359668.

The product of its (nonzero) digits is 8960, while the sum is 32.

Adding to 445117020100421 its reverse (124001020711544), we get a palindrome (569118040811965).

The spelling of 445117020100421 in words is "four hundred forty-five trillion, one hundred seventeen billion, twenty million, one hundred thousand, four hundred twenty-one".