445555162201 has 4 divisors (see below), whose sum is σ = 445556835892. Its totient is φ = 445553488512.

The previous prime is 445555162193. The next prime is 445555162279. The reversal of 445555162201 is 102261555544.

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

It can be written as a sum of positive squares in 2 ways, for example, as 23346312025 + 422208850176 = 152795^2 + 649776^2 .

It is a cyclic number.

It is not a de Polignac number, because 445555162201 - 2³ = 445555162193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445555162001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338676 + ... + 1002901.

It is an arithmetic number, because the mean of its divisors is an integer number (111389208973).

Almost surely, 2^445555162201 is an apocalyptic number.

It is an amenable number.

445555162201 is a deficient number, since it is larger than the sum of its proper divisors (1673691).

445555162201 is a wasteful number, since it uses less digits than its factorization.

445555162201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673690.

The product of its (nonzero) digits is 240000, while the sum is 40.

The spelling of 445555162201 in words is "four hundred forty-five billion, five hundred fifty-five million, one hundred sixty-two thousand, two hundred one".