66071030063 has 8 divisors (see below), whose sum is σ = 68952599136. Its totient is φ = 63190204000.

The previous prime is 66071030029. The next prime is 66071030071. The reversal of 66071030063 is 36003017066.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 66071030063 - 2⁸ = 66071029807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66071060063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68 + ... + 363513.

It is an arithmetic number, because the mean of its divisors is an integer number (8619074892).

Almost surely, 2^66071030063 is an apocalyptic number.

66071030063 is a deficient number, since it is larger than the sum of its proper divisors (2881569073).

66071030063 is a wasteful number, since it uses less digits than its factorization.

66071030063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371505.

The product of its (nonzero) digits is 13608, while the sum is 32.

The spelling of 66071030063 in words is "sixty-six billion, seventy-one million, thirty thousand, sixty-three".