66131301316 has 96 divisors (see below), whose sum is σ = 128774983680. Its totient is φ = 29583138816.

The previous prime is 66131301311. The next prime is 66131301319. The reversal of 66131301316 is 61310313166.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (66131301311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21407100 + ... + 21410188.

It is an arithmetic number, because the mean of its divisors is an integer number (1341406080).

Almost surely, 2^66131301316 is an apocalyptic number.

It is an amenable number.

66131301316 is a deficient number, since it is larger than the sum of its proper divisors (62643682364).

66131301316 is a wasteful number, since it uses less digits than its factorization.

66131301316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3341 (or 3339 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 31.

The spelling of 66131301316 in words is "sixty-six billion, one hundred thirty-one million, three hundred one thousand, three hundred sixteen".