66039342903 has 8 divisors (see below), whose sum is σ = 97836063600. Its totient is φ = 44026228584.

The previous prime is 66039342899. The next prime is 66039342931. The reversal of 66039342903 is 30924393066.

66039342903 is a `hidden beast` number, since 6 + 603 + 9 + 34 + 2 + 9 + 0 + 3 = 666.

It is not a de Polignac number, because 66039342903 - 2² = 66039342899 is a prime.

It is a super-2 number, since 2×66039342903² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66039342953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1222950768 + ... + 1222950821.

It is an arithmetic number, because the mean of its divisors is an integer number (12229507950).

Almost surely, 2^66039342903 is an apocalyptic number.

66039342903 is a deficient number, since it is larger than the sum of its proper divisors (31796720697).

66039342903 is a wasteful number, since it uses less digits than its factorization.

66039342903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2445901598 (or 2445901592 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 45.

The spelling of 66039342903 in words is "sixty-six billion, thirty-nine million, three hundred forty-two thousand, nine hundred three".