67680076165 has 64 divisors (see below), whose sum is σ = 91547366400. Its totient is φ = 47706624000.

The previous prime is 67680076147. The next prime is 67680076183. The reversal of 67680076165 is 56167008676.

It is an interprime number because it is at equal distance from previous prime (67680076147) and next prime (67680076183).

It is not a de Polignac number, because 67680076165 - 2⁹ = 67680075653 is a prime.

It is a super-2 number, since 2×67680076165² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 37578265 + ... + 37580065.

It is an arithmetic number, because the mean of its divisors is an integer number (1430427600).

Almost surely, 2^67680076165 is an apocalyptic number.

67680076165 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

67680076165 is a deficient number, since it is larger than the sum of its proper divisors (23867290235).

67680076165 is a wasteful number, since it uses less digits than its factorization.

67680076165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2158.

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 67680076165 in words is "sixty-seven billion, six hundred eighty million, seventy-six thousand, one hundred sixty-five".