159663755 has 4 divisors (see below), whose sum is σ = 191596512. Its totient is φ = 127731000.

The previous prime is 159663739. The next prime is 159663767. The reversal of 159663755 is 557366951.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 557366951 = 257 ⋅2168743.

It is not a de Polignac number, because 159663755 - 2⁴ = 159663739 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15966371 + ... + 15966380.

It is an arithmetic number, because the mean of its divisors is an integer number (47899128).

Almost surely, 2^159663755 is an apocalyptic number.

159663755 is a deficient number, since it is larger than the sum of its proper divisors (31932757).

159663755 is an equidigital number, since it uses as much as digits as its factorization.

159663755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31932756.

The product of its digits is 850500, while the sum is 47.

The square root of 159663755 is about 12635.8123996837. The cubic root of 159663755 is about 542.5029610434.

The spelling of 159663755 in words is "one hundred fifty-nine million, six hundred sixty-three thousand, seven hundred fifty-five".