16158168706 has 4 divisors (see below), whose sum is σ = 24237253062. Its totient is φ = 8079084352.

The previous prime is 16158168701. The next prime is 16158168707. The reversal of 16158168706 is 60786185161.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14970746025 + 1187422681 = 122355^2 + 34459^2 .

It is a super-2 number, since 2×16158168706² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 16158168706.

It is not an unprimeable number, because it can be changed into a prime (16158168701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4039542175 + ... + 4039542178.

Almost surely, 2^16158168706 is an apocalyptic number.

16158168706 is a deficient number, since it is larger than the sum of its proper divisors (8079084356).

16158168706 is an equidigital number, since it uses as much as digits as its factorization.

16158168706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8079084355.

The product of its (nonzero) digits is 483840, while the sum is 49.

The spelling of 16158168706 in words is "sixteen billion, one hundred fifty-eight million, one hundred sixty-eight thousand, seven hundred six".