550166020601 has 2 divisors, whose sum is σ = 550166020602. Its totient is φ = 550166020600.

The previous prime is 550166020577. The next prime is 550166020619. The reversal of 550166020601 is 106020661055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 549857842576 + 308178025 = 741524^2 + 17555^2 .

It is a cyclic number.

It is not a de Polignac number, because 550166020601 - 2³⁴ = 532986151417 is a prime.

It is not a weakly prime, because it can be changed into another prime (550166020661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275083010300 + 275083010301.

It is an arithmetic number, because the mean of its divisors is an integer number (275083010301).

Almost surely, 2^550166020601 is an apocalyptic number.

It is an amenable number.

550166020601 is a deficient number, since it is larger than the sum of its proper divisors (1).

550166020601 is an equidigital number, since it uses as much as digits as its factorization.

550166020601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 32.

Adding to 550166020601 its reverse (106020661055), we get a palindrome (656186681656).

The spelling of 550166020601 in words is "five hundred fifty billion, one hundred sixty-six million, twenty thousand, six hundred one".