66302675140 has 48 divisors (see below), whose sum is σ = 150087999600. Its totient is φ = 24457812480.

The previous prime is 66302675119. The next prime is 66302675149. The reversal of 66302675140 is 4157620366.

It can be written as a sum of positive squares in 8 ways, for example, as 3611529216 + 62691145924 = 60096^2 + 250382^2 .

It is a junction number, because it is equal to n+sod(n) for n = 66302675093 and 66302675102.

It is not an unprimeable number, because it can be changed into a prime (66302675149) 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, 155686 + ... + 396034.

It is an arithmetic number, because the mean of its divisors is an integer number (3126833325).

Almost surely, 2^66302675140 is an apocalyptic number.

It is an amenable number.

66302675140 is an abundant number, since it is smaller than the sum of its proper divisors (83785324460).

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

66302675140 is a wasteful number, since it uses less digits than its factorization.

66302675140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241432 (or 241430 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 66302675140 in words is "sixty-six billion, three hundred two million, six hundred seventy-five thousand, one hundred forty".