44055521645599 has 2 divisors, whose sum is σ = 44055521645600. Its totient is φ = 44055521645598.

The previous prime is 44055521645563. The next prime is 44055521645657. The reversal of 44055521645599 is 99554612555044.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 44055521645599 - 2¹⁷ = 44055521514527 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44055521645599.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44055521645099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22027760822799 + 22027760822800.

It is an arithmetic number, because the mean of its divisors is an integer number (22027760822800).

Almost surely, 2^{44055521645599} is an apocalyptic number.

44055521645599 is a deficient number, since it is larger than the sum of its proper divisors (1).

44055521645599 is an equidigital number, since it uses as much as digits as its factorization.

44055521645599 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 194400000, while the sum is 64.

The spelling of 44055521645599 in words is "forty-four trillion, fifty-five billion, five hundred twenty-one million, six hundred forty-five thousand, five hundred ninety-nine".