166480387 has 8 divisors (see below), whose sum is σ = 173804400. Its totient is φ = 159261984.

The previous prime is 166480373. The next prime is 166480397. The reversal of 166480387 is 783084661.

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

It is a cyclic number.

It is not a de Polignac number, because 166480387 - 2¹⁹ = 165956099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166480397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23173 + ... + 29494.

It is an arithmetic number, because the mean of its divisors is an integer number (21725550).

Almost surely, 2^166480387 is an apocalyptic number.

166480387 is a deficient number, since it is larger than the sum of its proper divisors (7324013).

166480387 is a wasteful number, since it uses less digits than its factorization.

166480387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52805.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 166480387 is about 12902.7278898689. The cubic root of 166480387 is about 550.1161044144.

The spelling of 166480387 in words is "one hundred sixty-six million, four hundred eighty thousand, three hundred eighty-seven".