445133405555 has 4 divisors (see below), whose sum is σ = 534160086672. Its totient is φ = 356106724440.

The previous prime is 445133405531. The next prime is 445133405569. The reversal of 445133405555 is 555504331544.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 445133405555 - 2²⁰ = 445132356979 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44513340551 + ... + 44513340560.

It is an arithmetic number, because the mean of its divisors is an integer number (133540021668).

Almost surely, 2^445133405555 is an apocalyptic number.

445133405555 is a deficient number, since it is larger than the sum of its proper divisors (89026681117).

445133405555 is an equidigital number, since it uses as much as digits as its factorization.

445133405555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89026681116.

The product of its (nonzero) digits is 1800000, while the sum is 44.

The spelling of 445133405555 in words is "four hundred forty-five billion, one hundred thirty-three million, four hundred five thousand, five hundred fifty-five".