161076658 has 4 divisors (see below), whose sum is σ = 241614990. Its totient is φ = 80538328.

The previous prime is 161076637. The next prime is 161076743. The reversal of 161076658 is 856670161.

161076658 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 856670161 = 1291 ⋅663571.

It can be written as a sum of positive squares in only one way, i.e., 124389409 + 36687249 = 11153^2 + 6057^2 .

It is a Smith number, since the sum of its digits (40) 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 161076658.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40269163 + ... + 40269166.

Almost surely, 2^161076658 is an apocalyptic number.

161076658 is a deficient number, since it is larger than the sum of its proper divisors (80538332).

161076658 is an equidigital number, since it uses as much as digits as its factorization.

161076658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80538331.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 161076658 is about 12691.5979293389. The cubic root of 161076658 is about 544.0985102203.

The spelling of 161076658 in words is "one hundred sixty-one million, seventy-six thousand, six hundred fifty-eight".