66571103334 has 32 divisors (see below), whose sum is σ = 134061854976. Its totient is φ = 22037176800.

The previous prime is 66571103317. The next prime is 66571103359. The reversal of 66571103334 is 43330117566.

It is a super-2 number, since 2×66571103334² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 66571103292 and 66571103301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4084269 + ... + 4100535.

It is an arithmetic number, because the mean of its divisors is an integer number (4189432968).

Almost surely, 2^66571103334 is an apocalyptic number.

66571103334 is an abundant number, since it is smaller than the sum of its proper divisors (67490751642).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66571103334 is a wasteful number, since it uses less digits than its factorization.

66571103334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20940.

The product of its (nonzero) digits is 136080, while the sum is 39.

The spelling of 66571103334 in words is "sixty-six billion, five hundred seventy-one million, one hundred three thousand, three hundred thirty-four".