66343345 has 16 divisors (see below), whose sum is σ = 84104640. Its totient is φ = 50099904.

The previous prime is 66343337. The next prime is 66343351. The reversal of 66343345 is 54334366.

It is a cyclic number.

It is not a de Polignac number, because 66343345 - 2³ = 66343337 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66343345.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29014 + ... + 31216.

It is an arithmetic number, because the mean of its divisors is an integer number (5256540).

Almost surely, 2^66343345 is an apocalyptic number.

It is an amenable number.

66343345 is a deficient number, since it is larger than the sum of its proper divisors (17761295).

66343345 is a wasteful number, since it uses less digits than its factorization.

66343345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2544.

The product of its digits is 77760, while the sum is 34.

The square root of 66343345 is about 8145.1424174167. The cubic root of 66343345 is about 404.8235679208.

The spelling of 66343345 in words is "sixty-six million, three hundred forty-three thousand, three hundred forty-five".