66336642760 has 64 divisors (see below), whose sum is σ = 154467356400. Its totient is φ = 25609199616.

The previous prime is 66336642737. The next prime is 66336642761. The reversal of 66336642760 is 6724663366.

It can be written as a sum of positive squares in 8 ways, for example, as 37151020516 + 29185622244 = 192746^2 + 170838^2 .

It is not an unprimeable number, because it can be changed into a prime (66336642761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3211024 + ... + 3231616.

Almost surely, 2^66336642760 is an apocalyptic number.

It is an amenable number.

66336642760 is an abundant number, since it is smaller than the sum of its proper divisors (88130713640).

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

66336642760 is a wasteful number, since it uses less digits than its factorization.

66336642760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23410 (or 23406 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 49.

The spelling of 66336642760 in words is "sixty-six billion, three hundred thirty-six million, six hundred forty-two thousand, seven hundred sixty".