65998932027 has 32 divisors (see below), whose sum is σ = 101212480512. Its totient is φ = 37473352704.

The previous prime is 65998932011. The next prime is 65998932037. The reversal of 65998932027 is 72023989956.

It is not a de Polignac number, because 65998932027 - 2⁴ = 65998932011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65998932037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2369043 + ... + 2396739.

It is an arithmetic number, because the mean of its divisors is an integer number (3162890016).

Almost surely, 2^65998932027 is an apocalyptic number.

65998932027 is a deficient number, since it is larger than the sum of its proper divisors (35213548485).

65998932027 is a wasteful number, since it uses less digits than its factorization.

65998932027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28427.

The product of its (nonzero) digits is 14696640, while the sum is 60.

The spelling of 65998932027 in words is "sixty-five billion, nine hundred ninety-eight million, nine hundred thirty-two thousand, twenty-seven".