66130837291 has 16 divisors (see below), whose sum is σ = 70191969120. Its totient is φ = 62227559680.

The previous prime is 66130837249. The next prime is 66130837319. The reversal of 66130837291 is 19273803166.

It is a cyclic number.

It is not a de Polignac number, because 66130837291 - 2²⁹ = 65593966379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66130837211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129700 + ... + 386113.

It is an arithmetic number, because the mean of its divisors is an integer number (4386998070).

Almost surely, 2^66130837291 is an apocalyptic number.

66130837291 is a deficient number, since it is larger than the sum of its proper divisors (4061131829).

66130837291 is a wasteful number, since it uses less digits than its factorization.

66130837291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515966.

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 66130837291 in words is "sixty-six billion, one hundred thirty million, eight hundred thirty-seven thousand, two hundred ninety-one".