66571103371 has 8 divisors (see below), whose sum is σ = 66692727920. Its totient is φ = 66449525472.

The previous prime is 66571103359. The next prime is 66571103387. The reversal of 66571103371 is 17330117566.

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 66571103371 - 2³⁵ = 32211365003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66571103971) 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, 4159741 + ... + 4175713.

It is an arithmetic number, because the mean of its divisors is an integer number (8336590990).

Almost surely, 2^66571103371 is an apocalyptic number.

66571103371 is a deficient number, since it is larger than the sum of its proper divisors (121624549).

66571103371 is a wasteful number, since it uses less digits than its factorization.

66571103371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23325.

The product of its (nonzero) digits is 79380, while the sum is 40.

The spelling of 66571103371 in words is "sixty-six billion, five hundred seventy-one million, one hundred three thousand, three hundred seventy-one".