163166143737 has 4 divisors (see below), whose sum is σ = 217554858320. Its totient is φ = 108777429156.

The previous prime is 163166143727. The next prime is 163166143739. The reversal of 163166143737 is 737341661361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-163166143737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163166143739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27194357287 + ... + 27194357292.

It is an arithmetic number, because the mean of its divisors is an integer number (54388714580).

Almost surely, 2^163166143737 is an apocalyptic number.

It is an amenable number.

163166143737 is a deficient number, since it is larger than the sum of its proper divisors (54388714583).

163166143737 is an equidigital number, since it uses as much as digits as its factorization.

163166143737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54388714582.

The product of its digits is 1143072, while the sum is 48.

The spelling of 163166143737 in words is "one hundred sixty-three billion, one hundred sixty-six million, one hundred forty-three thousand, seven hundred thirty-seven".