66272025716 has 18 divisors (see below), whose sum is σ = 125583529302. Its totient is φ = 30587088480.

The previous prime is 66272025691. The next prime is 66272025731. The reversal of 66272025716 is 61752027266.

It can be written as a sum of positive squares in 3 ways, for example, as 1953993616 + 64318032100 = 44204^2 + 253610^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49017095 + ... + 49018446.

It is an arithmetic number, because the mean of its divisors is an integer number (6976862739).

Almost surely, 2^66272025716 is an apocalyptic number.

It is an amenable number.

66272025716 is a deficient number, since it is larger than the sum of its proper divisors (59311503586).

66272025716 is a wasteful number, since it uses less digits than its factorization.

66272025716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98035571 (or 98035556 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 66272025716 in words is "sixty-six billion, two hundred seventy-two million, twenty-five thousand, seven hundred sixteen".