66026025725 has 24 divisors (see below), whose sum is σ = 89580361728. Its totient is φ = 47876371200.

The previous prime is 66026025721. The next prime is 66026025743. The reversal of 66026025725 is 52752062066.

It is a happy number.

It is not a de Polignac number, because 66026025725 - 2² = 66026025721 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66026025721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 263549 + ... + 448898.

It is an arithmetic number, because the mean of its divisors is an integer number (3732515072).

Almost surely, 2^66026025725 is an apocalyptic number.

It is an amenable number.

66026025725 is a deficient number, since it is larger than the sum of its proper divisors (23554336003).

66026025725 is a wasteful number, since it uses less digits than its factorization.

66026025725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712805 (or 712800 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 41.

The spelling of 66026025725 in words is "sixty-six billion, twenty-six million, twenty-five thousand, seven hundred twenty-five".