2163742158 has 16 divisors (see below), whose sum is σ = 4515636096. Its totient is φ = 689888760.

The previous prime is 2163742157. The next prime is 2163742169. The reversal of 2163742158 is 8512473612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163742157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7839508 + ... + 7839783.

It is an arithmetic number, because the mean of its divisors is an integer number (282227256).

Almost surely, 2^2163742158 is an apocalyptic number.

2163742158 is an abundant number, since it is smaller than the sum of its proper divisors (2351893938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2163742158 is a wasteful number, since it uses less digits than its factorization.

2163742158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15679319.

The product of its digits is 80640, while the sum is 39.

The square root of 2163742158 is about 46516.0419425385. The cubic root of 2163742158 is about 1293.4068865745.

The spelling of 2163742158 in words is "two billion, one hundred sixty-three million, seven hundred forty-two thousand, one hundred fifty-eight".