345166478 has 4 divisors (see below), whose sum is σ = 517749720. Its totient is φ = 172583238.

The previous prime is 345166477. The next prime is 345166501. The reversal of 345166478 is 874661543.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345166477) 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 as a sum of consecutive naturals, namely, 86291618 + ... + 86291621.

It is an arithmetic number, because the mean of its divisors is an integer number (129437430).

Almost surely, 2^345166478 is an apocalyptic number.

345166478 is a deficient number, since it is larger than the sum of its proper divisors (172583242).

345166478 is a wasteful number, since it uses less digits than its factorization.

345166478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172583241.

The product of its digits is 483840, while the sum is 44.

The square root of 345166478 is about 18578.6565176280. The cubic root of 345166478 is about 701.4707024429.

The spelling of 345166478 in words is "three hundred forty-five million, one hundred sixty-six thousand, four hundred seventy-eight".