66498125996 has 6 divisors (see below), whose sum is σ = 116371720500. Its totient is φ = 33249062996.

The previous prime is 66498125971. The next prime is 66498125999. The reversal of 66498125996 is 69952189466.

It is not an unprimeable number, because it can be changed into a prime (66498125999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8312265746 + ... + 8312265753.

It is an arithmetic number, because the mean of its divisors is an integer number (19395286750).

Almost surely, 2^66498125996 is an apocalyptic number.

It is an amenable number.

66498125996 is a deficient number, since it is larger than the sum of its proper divisors (49873594504).

66498125996 is a wasteful number, since it uses less digits than its factorization.

66498125996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16624531503 (or 16624531501 counting only the distinct ones).

The product of its digits is 50388480, while the sum is 65.

The spelling of 66498125996 in words is "sixty-six billion, four hundred ninety-eight million, one hundred twenty-five thousand, nine hundred ninety-six".