66231532074707 has 4 divisors (see below), whose sum is σ = 66231990952920. Its totient is φ = 66231073196496.

The previous prime is 66231532074623. The next prime is 66231532074727. The reversal of 66231532074707 is 70747023513266.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66231532074707 - 2²⁴ = 66231515297491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66231532074727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229222538 + ... + 229511295.

It is an arithmetic number, because the mean of its divisors is an integer number (16557997738230).

Almost surely, 2^{66231532074707} is an apocalyptic number.

66231532074707 is a deficient number, since it is larger than the sum of its proper divisors (458878213).

66231532074707 is a wasteful number, since it uses less digits than its factorization.

66231532074707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458878212.

The product of its (nonzero) digits is 8890560, while the sum is 53.

The spelling of 66231532074707 in words is "sixty-six trillion, two hundred thirty-one billion, five hundred thirty-two million, seventy-four thousand, seven hundred seven".