67697632163 has 4 divisors (see below), whose sum is σ = 77368722480. Its totient is φ = 58026541848.

The previous prime is 67697632139. The next prime is 67697632183. The reversal of 67697632163 is 36123679676.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 67697632163 - 2²² = 67693437859 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 67697632099 and 67697632108.

It is not an unprimeable number, because it can be changed into a prime (67697632183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4835545148 + ... + 4835545161.

It is an arithmetic number, because the mean of its divisors is an integer number (19342180620).

Almost surely, 2^67697632163 is an apocalyptic number.

67697632163 is a deficient number, since it is larger than the sum of its proper divisors (9671090317).

67697632163 is an equidigital number, since it uses as much as digits as its factorization.

67697632163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9671090316.

The product of its digits is 10287648, while the sum is 56.

The spelling of 67697632163 in words is "sixty-seven billion, six hundred ninety-seven million, six hundred thirty-two thousand, one hundred sixty-three".