66030991339 has 8 divisors (see below), whose sum is σ = 67282641360. Its totient is φ = 64790668800.

The previous prime is 66030991321. The next prime is 66030991361. The reversal of 66030991339 is 93319903066.

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 66030991339 - 2⁷ = 66030991211 is a prime.

It is a super-2 number, since 2×66030991339² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66030991292 and 66030991301.

It is not an unprimeable number, because it can be changed into a prime (66030991399) 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, 2820102 + ... + 2843419.

It is an arithmetic number, because the mean of its divisors is an integer number (8410330170).

Almost surely, 2^66030991339 is an apocalyptic number.

66030991339 is a deficient number, since it is larger than the sum of its proper divisors (1251650021).

66030991339 is a wasteful number, since it uses less digits than its factorization.

66030991339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5663741.

The product of its (nonzero) digits is 708588, while the sum is 49.

The spelling of 66030991339 in words is "sixty-six billion, thirty million, nine hundred ninety-one thousand, three hundred thirty-nine".