66060061 has 8 divisors (see below), whose sum is σ = 67785984. Its totient is φ = 64339680.

The previous prime is 66060053. The next prime is 66060103. The reversal of 66060061 is 16006066.

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

It is a cyclic number.

It is not a de Polignac number, because 66060061 - 2³ = 66060053 is a prime.

It is a Duffinian number.

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, 34450 + ... + 36316.

It is an arithmetic number, because the mean of its divisors is an integer number (8473248).

Almost surely, 2^66060061 is an apocalyptic number.

It is an amenable number.

66060061 is a deficient number, since it is larger than the sum of its proper divisors (1725923).

66060061 is a wasteful number, since it uses less digits than its factorization.

66060061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2771.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 66060061 is about 8127.7340630707. The cubic root of 66060061 is about 404.2465512175.

The spelling of 66060061 in words is "sixty-six million, sixty thousand, sixty-one".