66727333939 has 16 divisors (see below), whose sum is σ = 76443464448. Its totient is φ = 57057249312.

The previous prime is 66727333931. The next prime is 66727333943. The reversal of 66727333939 is 93933372766.

It is not a de Polignac number, because 66727333939 - 2³ = 66727333931 is a prime.

It is a super-3 number, since 3×66727333939³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66727333931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7899052 + ... + 7907494.

It is an arithmetic number, because the mean of its divisors is an integer number (4777716528).

Almost surely, 2^66727333939 is an apocalyptic number.

66727333939 is a deficient number, since it is larger than the sum of its proper divisors (9716130509).

66727333939 is a wasteful number, since it uses less digits than its factorization.

66727333939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11034.

The product of its digits is 23147208, while the sum is 58.

The spelling of 66727333939 in words is "sixty-six billion, seven hundred twenty-seven million, three hundred thirty-three thousand, nine hundred thirty-nine".