445442100656021 has 12 divisors (see below), whose sum is σ = 545439306926880. Its totient is φ = 361712382486840.

The previous prime is 445442100655973. The next prime is 445442100656029. The reversal of 445442100656021 is 120656001244544.

It is not a de Polignac number, because 445442100656021 - 2⁶ = 445442100655957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445442100656029) 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 11 ways as a sum of consecutive naturals, for example, 239227765265 + ... + 239227767126.

It is an arithmetic number, because the mean of its divisors is an integer number (45453275577240).

Almost surely, 2^{445442100656021} is an apocalyptic number.

It is an amenable number.

445442100656021 is a deficient number, since it is larger than the sum of its proper divisors (99997206270859).

445442100656021 is a wasteful number, since it uses less digits than its factorization.

445442100656021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478455532424 (or 478455532417 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 44.

The spelling of 445442100656021 in words is "four hundred forty-five trillion, four hundred forty-two billion, one hundred million, six hundred fifty-six thousand, twenty-one".