66252425267 has 32 divisors (see below), whose sum is σ = 79754035200. Its totient is φ = 53808388128.

The previous prime is 66252425263. The next prime is 66252425287. The reversal of 66252425267 is 76252425266.

It is a happy number.

It is not a de Polignac number, because 66252425267 - 2² = 66252425263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66252425263) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10895534 + ... + 10901612.

It is an arithmetic number, because the mean of its divisors is an integer number (2492313600).

Almost surely, 2^66252425267 is an apocalyptic number.

66252425267 is a deficient number, since it is larger than the sum of its proper divisors (13501609933).

66252425267 is a wasteful number, since it uses less digits than its factorization.

66252425267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6735.

The product of its digits is 2419200, while the sum is 47.

Subtracting 66252425267 from its reverse (76252425266), we obtain a palindrome (9999999999).

The spelling of 66252425267 in words is "sixty-six billion, two hundred fifty-two million, four hundred twenty-five thousand, two hundred sixty-seven".