1550441323445 has 16 divisors (see below), whose sum is σ = 2128319880960. Its totient is φ = 1062159588864.

The previous prime is 1550441323421. The next prime is 1550441323513. The reversal of 1550441323445 is 5443231440551.

It is a cyclic number.

It is not a de Polignac number, because 1550441323445 - 2¹⁶ = 1550441257909 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20799260 + ... + 20873669.

It is an arithmetic number, because the mean of its divisors is an integer number (133019992560).

Almost surely, 2^{1550441323445} is an apocalyptic number.

It is an amenable number.

1550441323445 is a deficient number, since it is larger than the sum of its proper divisors (577878557515).

1550441323445 is a wasteful number, since it uses less digits than its factorization.

1550441323445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41674004.

The product of its (nonzero) digits is 576000, while the sum is 41.

Adding to 1550441323445 its reverse (5443231440551), we get a palindrome (6993672763996).

The spelling of 1550441323445 in words is "one trillion, five hundred fifty billion, four hundred forty-one million, three hundred twenty-three thousand, four hundred forty-five".