66342045 has 64 divisors (see below), whose sum is σ = 134369280. Its totient is φ = 27148800.

The previous prime is 66342037. The next prime is 66342071. The reversal of 66342045 is 54024366.

It is not a de Polignac number, because 66342045 - 2³ = 66342037 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 81601 + ... + 82409.

It is an arithmetic number, because the mean of its divisors is an integer number (2099520).

Almost surely, 2^66342045 is an apocalyptic number.

It is an amenable number.

66342045 is an abundant number, since it is smaller than the sum of its proper divisors (68027235).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66342045 is a wasteful number, since it uses less digits than its factorization.

66342045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 66342045 is about 8145.0626148606. The cubic root of 66342045 is about 404.8209237266.

The spelling of 66342045 in words is "sixty-six million, three hundred forty-two thousand, forty-five".