1550666159 has 16 divisors (see below), whose sum is σ = 1868292096. Its totient is φ = 1258891200.

The previous prime is 1550666123. The next prime is 1550666179. The reversal of 1550666159 is 9516660551.

It is not a de Polignac number, because 1550666159 - 2¹² = 1550662063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1550666179) 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, 65822 + ... + 86219.

It is an arithmetic number, because the mean of its divisors is an integer number (116768256).

Almost surely, 2^1550666159 is an apocalyptic number.

1550666159 is a deficient number, since it is larger than the sum of its proper divisors (317625937).

1550666159 is a wasteful number, since it uses less digits than its factorization.

1550666159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152126.

The product of its (nonzero) digits is 243000, while the sum is 44.

The square root of 1550666159 is about 39378.4986890054. The cubic root of 1550666159 is about 1157.4602975309.

The spelling of 1550666159 in words is "one billion, five hundred fifty million, six hundred sixty-six thousand, one hundred fifty-nine".