180117466 has 4 divisors (see below), whose sum is σ = 270176202. Its totient is φ = 90058732.

The previous prime is 180117461. The next prime is 180117491. The reversal of 180117466 is 664711081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 664711081 = 15137 ⋅43913.

It can be written as a sum of positive squares in only one way, i.e., 142110241 + 38007225 = 11921^2 + 6165^2 .

It is a super-2 number, since 2×180117466² = 64884603116522312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (180117461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45029365 + ... + 45029368.

Almost surely, 2^180117466 is an apocalyptic number.

180117466 is a deficient number, since it is larger than the sum of its proper divisors (90058736).

180117466 is an equidigital number, since it uses as much as digits as its factorization.

180117466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90058735.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 180117466 is about 13420.7848503729. The cubic root of 180117466 is about 564.7444125522.

The spelling of 180117466 in words is "one hundred eighty million, one hundred seventeen thousand, four hundred sixty-six".