550123330355643 has 16 divisors (see below), whose sum is σ = 801907638852096. Its totient is φ = 332687975151840.

The previous prime is 550123330355639. The next prime is 550123330355647. The reversal of 550123330355643 is 346553033321055.

It is an interprime number because it is at equal distance from previous prime (550123330355639) and next prime (550123330355647).

It is not a de Polignac number, because 550123330355643 - 2² = 550123330355639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 550123330355592 and 550123330355601.

It is not an unprimeable number, because it can be changed into a prime (550123330355647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18002580780 + ... + 18002611337.

It is an arithmetic number, because the mean of its divisors is an integer number (50119227428256).

Almost surely, 2^{550123330355643} is an apocalyptic number.

550123330355643 is a deficient number, since it is larger than the sum of its proper divisors (251784308496453).

550123330355643 is a wasteful number, since it uses less digits than its factorization.

550123330355643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36005192594.

The product of its (nonzero) digits is 7290000, while the sum is 48.

Adding to 550123330355643 its reverse (346553033321055), we get a palindrome (896676363676698).

The spelling of 550123330355643 in words is "five hundred fifty trillion, one hundred twenty-three billion, three hundred thirty million, three hundred fifty-five thousand, six hundred forty-three".