66060039 has 8 divisors (see below), whose sum is σ = 90921472. Its totient is φ = 42619320.

The previous prime is 66060031. The next prime is 66060053. The reversal of 66060039 is 93006066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66060039 - 2³ = 66060031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66059988 and 66060015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66060031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 355069 + ... + 355254.

It is an arithmetic number, because the mean of its divisors is an integer number (11365184).

Almost surely, 2^66060039 is an apocalyptic number.

66060039 is a deficient number, since it is larger than the sum of its proper divisors (24861433).

66060039 is a wasteful number, since it uses less digits than its factorization.

66060039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710357.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 66060039 is about 8127.7327096799. The cubic root of 66060039 is about 404.2465063421.

The spelling of 66060039 in words is "sixty-six million, sixty thousand, thirty-nine".