66306262272 has 72 divisors (see below), whose sum is σ = 176511631296. Its totient is φ = 22097043456.

The previous prime is 66306262271. The next prime is 66306262361. The reversal of 66306262272 is 27226260366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66306262271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5044573 + ... + 5057699.

Almost surely, 2^66306262272 is an apocalyptic number.

It is an amenable number.

66306262272 is an abundant number, since it is smaller than the sum of its proper divisors (110205369024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66306262272 is a wasteful number, since it uses less digits than its factorization.

66306262272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19723 (or 19709 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 42.

The spelling of 66306262272 in words is "sixty-six billion, three hundred six million, two hundred sixty-two thousand, two hundred seventy-two".