66065753131 has 8 divisors (see below), whose sum is σ = 75505515264. Its totient is φ = 56626440360.

The previous prime is 66065753129. The next prime is 66065753227. The reversal of 66065753131 is 13135756066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66065753131 - 2¹ = 66065753129 is a prime.

It is a super-2 number, since 2×66065753131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66065753431) 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 7 ways as a sum of consecutive naturals, for example, 307146 + ... + 475888.

It is an arithmetic number, because the mean of its divisors is an integer number (9438189408).

Almost surely, 2^66065753131 is an apocalyptic number.

66065753131 is a deficient number, since it is larger than the sum of its proper divisors (9439762133).

66065753131 is a wasteful number, since it uses less digits than its factorization.

66065753131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224681.

The product of its (nonzero) digits is 340200, while the sum is 43.

The spelling of 66065753131 in words is "sixty-six billion, sixty-five million, seven hundred fifty-three thousand, one hundred thirty-one".