166119061 has 4 divisors (see below), whose sum is σ = 166154752. Its totient is φ = 166083372.

The previous prime is 166119029. The next prime is 166119073. The reversal of 166119061 is 160911661.

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: 160911661 = 113 ⋅1423997.

It is a cyclic number.

It is not a de Polignac number, because 166119061 - 2⁵ = 166119029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166119001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9591 + ... + 20596.

It is an arithmetic number, because the mean of its divisors is an integer number (41538688).

Almost surely, 2^166119061 is an apocalyptic number.

It is an amenable number.

166119061 is a deficient number, since it is larger than the sum of its proper divisors (35691).

166119061 is an equidigital number, since it uses as much as digits as its factorization.

166119061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35690.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 166119061 is about 12888.7183614198. The cubic root of 166119061 is about 549.7178288138.

The spelling of 166119061 in words is "one hundred sixty-six million, one hundred nineteen thousand, sixty-one".