2045550505457 has 8 divisors (see below), whose sum is σ = 2165904767592. Its totient is φ = 1925199328000.

The previous prime is 2045550505451. The next prime is 2045550505459. The reversal of 2045550505457 is 7545050555402.

It can be written as a sum of positive squares in 4 ways, for example, as 662459255056 + 1383091250401 = 813916^2 + 1176049^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2045550505457 - 2¹⁶ = 2045550439921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2045550505451) 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 7 ways as a sum of consecutive naturals, for example, 671207 + ... + 2131107.

It is an arithmetic number, because the mean of its divisors is an integer number (270738095949).

Almost surely, 2^{2045550505457} is an apocalyptic number.

It is an amenable number.

2045550505457 is a deficient number, since it is larger than the sum of its proper divisors (120354262135).

2045550505457 is a wasteful number, since it uses less digits than its factorization.

2045550505457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542339.

The product of its (nonzero) digits is 3500000, while the sum is 47.

The spelling of 2045550505457 in words is "two trillion, forty-five billion, five hundred fifty million, five hundred five thousand, four hundred fifty-seven".