45440244204455 has 4 divisors (see below), whose sum is σ = 54528293045352. Its totient is φ = 36352195363560.

The previous prime is 45440244204451. The next prime is 45440244204457. The reversal of 45440244204455 is 55440244204454.

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

It is not a de Polignac number, because 45440244204455 - 2² = 45440244204451 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 (45440244204451) 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, 4544024420441 + ... + 4544024420450.

It is an arithmetic number, because the mean of its divisors is an integer number (13632073261338).

Almost surely, 2^{45440244204455} is an apocalyptic number.

45440244204455 is a deficient number, since it is larger than the sum of its proper divisors (9088048840897).

45440244204455 is an equidigital number, since it uses as much as digits as its factorization.

45440244204455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9088048840896.

The product of its (nonzero) digits is 8192000, while the sum is 47.

Subtracting 45440244204455 from its reverse (55440244204454), we obtain a palindrome (9999999999999).

The spelling of 45440244204455 in words is "forty-five trillion, four hundred forty billion, two hundred forty-four million, two hundred four thousand, four hundred fifty-five".