66060045 has 24 divisors (see below), whose sum is σ = 121241016. Its totient is φ = 33159168.

The previous prime is 66060031. The next prime is 66060053. The reversal of 66060045 is 54006066.

It can be written as a sum of positive squares in 4 ways, for example, as 30669444 + 35390601 = 5538^2 + 5949^2 .

It is not a de Polignac number, because 66060045 - 2⁹ = 66059533 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42412 + ... + 43941.

It is an arithmetic number, because the mean of its divisors is an integer number (5051709).

Almost surely, 2^66060045 is an apocalyptic number.

It is an amenable number.

66060045 is a deficient number, since it is larger than the sum of its proper divisors (55180971).

66060045 is a wasteful number, since it uses less digits than its factorization.

66060045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86381 (or 86378 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 66060045 is about 8127.7330787865. The cubic root of 66060045 is about 404.2465185808.

The spelling of 66060045 in words is "sixty-six million, sixty thousand, forty-five".