66677410071 has 12 divisors (see below), whose sum is σ = 97530952480. Its totient is φ = 43888927680.

The previous prime is 66677410057. The next prime is 66677410133. The reversal of 66677410071 is 17001477666.

It is not a de Polignac number, because 66677410071 - 2⁷ = 66677409943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66677409999 and 66677410026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66677410001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46889170 + ... + 46890591.

Almost surely, 2^66677410071 is an apocalyptic number.

66677410071 is a deficient number, since it is larger than the sum of its proper divisors (30853542409).

66677410071 is a wasteful number, since it uses less digits than its factorization.

66677410071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93779846 (or 93779843 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 45.

The spelling of 66677410071 in words is "sixty-six billion, six hundred seventy-seven million, four hundred ten thousand, seventy-one".