66471883708 has 12 divisors (see below), whose sum is σ = 116847438400. Its totient is φ = 33086901312.

The previous prime is 66471883697. The next prime is 66471883711. The reversal of 66471883708 is 80738817466.

It is a super-2 number, since 2×66471883708² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37259133 + ... + 37260916.

Almost surely, 2^66471883708 is an apocalyptic number.

It is an amenable number.

66471883708 is a deficient number, since it is larger than the sum of its proper divisors (50375554692).

66471883708 is a wasteful number, since it uses less digits than its factorization.

66471883708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74520276 (or 74520274 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 58.

The spelling of 66471883708 in words is "sixty-six billion, four hundred seventy-one million, eight hundred eighty-three thousand, seven hundred eight".