166761113 has 4 divisors (see below), whose sum is σ = 166871568. Its totient is φ = 166650660.

The previous prime is 166761097. The next prime is 166761131. The reversal of 166761113 is 311167661.

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.

It is a cyclic number.

It is not a de Polignac number, because 166761113 - 2⁴ = 166761097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 166761113.

It is not an unprimeable number, because it can be changed into a prime (166761173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52931 + ... + 55992.

It is an arithmetic number, because the mean of its divisors is an integer number (41717892).

Almost surely, 2^166761113 is an apocalyptic number.

It is an amenable number.

166761113 is a deficient number, since it is larger than the sum of its proper divisors (110455).

166761113 is a wasteful number, since it uses less digits than its factorization.

166761113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110454.

The product of its digits is 4536, while the sum is 32.

The square root of 166761113 is about 12913.6018600544. The cubic root of 166761113 is about 550.4251401601.

The spelling of 166761113 in words is "one hundred sixty-six million, seven hundred sixty-one thousand, one hundred thirteen".