360166681 has 4 divisors (see below), whose sum is σ = 411619072. Its totient is φ = 308714292.

The previous prime is 360166663. The next prime is 360166693. The reversal of 360166681 is 186661063.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 186661063 = 397 ⋅470179.

It is a cyclic number.

It is not a de Polignac number, because 360166681 - 2¹¹ = 360164633 is a prime.

It is a super-2 number, since 2×360166681² = 259440076205111522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 360166681.

It is not an unprimeable number, because it can be changed into a prime (360166381) by changing a digit.

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, 25726185 + ... + 25726198.

It is an arithmetic number, because the mean of its divisors is an integer number (102904768).

Almost surely, 2^360166681 is an apocalyptic number.

It is an amenable number.

360166681 is a deficient number, since it is larger than the sum of its proper divisors (51452391).

360166681 is an equidigital number, since it uses as much as digits as its factorization.

360166681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51452390.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 360166681 is about 18978.0578827234. The cubic root of 360166681 is about 711.4884340567.

The spelling of 360166681 in words is "three hundred sixty million, one hundred sixty-six thousand, six hundred eighty-one".