67716161671 has 16 divisors (see below), whose sum is σ = 72503618400. Its totient is φ = 63052646400.

The previous prime is 67716161603. The next prime is 67716161687. The reversal of 67716161671 is 17616161776.

It is a cyclic number.

It is not a de Polignac number, because 67716161671 - 2⁷ = 67716161543 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 (67716161171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1555935 + ... + 1598863.

It is an arithmetic number, because the mean of its divisors is an integer number (4531476150).

Almost surely, 2^67716161671 is an apocalyptic number.

67716161671 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

67716161671 is a deficient number, since it is larger than the sum of its proper divisors (4787456729).

67716161671 is a wasteful number, since it uses less digits than its factorization.

67716161671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44370.

The product of its digits is 444528, while the sum is 49.

The spelling of 67716161671 in words is "sixty-seven billion, seven hundred sixteen million, one hundred sixty-one thousand, six hundred seventy-one".