15550660159 has 2 divisors, whose sum is σ = 15550660160. Its totient is φ = 15550660158.

The previous prime is 15550660129. The next prime is 15550660241. The reversal of 15550660159 is 95106605551.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15550660159 - 2¹⁹ = 15550135871 is a prime.

It is a super-3 number, since 3×15550660159³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15550660109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7775330079 + 7775330080.

It is an arithmetic number, because the mean of its divisors is an integer number (7775330080).

Almost surely, 2^15550660159 is an apocalyptic number.

15550660159 is a deficient number, since it is larger than the sum of its proper divisors (1).

15550660159 is an equidigital number, since it uses as much as digits as its factorization.

15550660159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 202500, while the sum is 43.

The spelling of 15550660159 in words is "fifteen billion, five hundred fifty million, six hundred sixty thousand, one hundred fifty-nine".