550146646664513 has 4 divisors (see below), whose sum is σ = 550228525916160. Its totient is φ = 550064767412868.

The previous prime is 550146646664509. The next prime is 550146646664521. The reversal of 550146646664513 is 315466646641055.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 550146646664513 - 2² = 550146646664509 is a prime.

It is a super-2 number, since 2×550146646664513² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550146646664533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40939615745 + ... + 40939629182.

It is an arithmetic number, because the mean of its divisors is an integer number (137557131479040).

Almost surely, 2^{550146646664513} is an apocalyptic number.

It is an amenable number.

550146646664513 is a deficient number, since it is larger than the sum of its proper divisors (81879251647).

550146646664513 is an equidigital number, since it uses as much as digits as its factorization.

550146646664513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81879251646.

The product of its (nonzero) digits is 186624000, while the sum is 62.

The spelling of 550146646664513 in words is "five hundred fifty trillion, one hundred forty-six billion, six hundred forty-six million, six hundred sixty-four thousand, five hundred thirteen".