66607500760 has 64 divisors (see below), whose sum is σ = 159082924320. Its totient is φ = 25012500480.

The previous prime is 66607500731. The next prime is 66607500761. The reversal of 66607500760 is 6700570666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66607500761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146595 + ... + 393325.

Almost surely, 2^66607500760 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66607500760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79541462160).

66607500760 is an abundant number, since it is smaller than the sum of its proper divisors (92475423560).

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

66607500760 is a wasteful number, since it uses less digits than its factorization.

66607500760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247156 (or 247152 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 43.

The spelling of 66607500760 in words is "sixty-six billion, six hundred seven million, five hundred thousand, seven hundred sixty".