161266674 has 8 divisors (see below), whose sum is σ = 322533360. Its totient is φ = 53755556.

The previous prime is 161266643. The next prime is 161266711. The reversal of 161266674 is 476662161.

It is a sphenic number, since it is the product of 3 distinct primes.

161266674 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13438884 + ... + 13438895.

It is an arithmetic number, because the mean of its divisors is an integer number (40316670).

Almost surely, 2^161266674 is an apocalyptic number.

161266674 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

161266674 is a wasteful number, since it uses less digits than its factorization.

161266674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26877784.

The product of its digits is 72576, while the sum is 39.

The square root of 161266674 is about 12699.0816203377. The cubic root of 161266674 is about 544.3123769104.

It can be divided in two parts, 1612 and 66674, that added together give a palindrome (68286).

The spelling of 161266674 in words is "one hundred sixty-one million, two hundred sixty-six thousand, six hundred seventy-four".