1550705066 has 4 divisors (see below), whose sum is σ = 2326057602. Its totient is φ = 775352532.

The previous prime is 1550705059. The next prime is 1550705077. The reversal of 1550705066 is 6605070551.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1161787225 + 388917841 = 34085^2 + 19721^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 387676265 + ... + 387676268.

Almost surely, 2^1550705066 is an apocalyptic number.

1550705066 is a deficient number, since it is larger than the sum of its proper divisors (775352536).

1550705066 is an equidigital number, since it uses as much as digits as its factorization.

1550705066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775352535.

The product of its (nonzero) digits is 31500, while the sum is 35.

The square root of 1550705066 is about 39378.9926991537. The cubic root of 1550705066 is about 1157.4699778718.

The spelling of 1550705066 in words is "one billion, five hundred fifty million, seven hundred five thousand, sixty-six".