166430465 has 8 divisors (see below), whose sum is σ = 201549480. Its totient is φ = 131922432.

The previous prime is 166430447. The next prime is 166430491. The reversal of 166430465 is 564034661.

It can be written as a sum of positive squares in 4 ways, for example, as 5216656 + 161213809 = 2284^2 + 12697^2 .

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 166430465 - 2²⁶ = 99321601 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 152144 + ... + 153233.

It is an arithmetic number, because the mean of its divisors is an integer number (25193685).

Almost surely, 2^166430465 is an apocalyptic number.

It is an amenable number.

166430465 is a deficient number, since it is larger than the sum of its proper divisors (35119015).

166430465 is a wasteful number, since it uses less digits than its factorization.

166430465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305491.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 166430465 is about 12900.7931926684. The cubic root of 166430465 is about 550.0611116668.

The spelling of 166430465 in words is "one hundred sixty-six million, four hundred thirty thousand, four hundred sixty-five".