67664342051 has 8 divisors (see below), whose sum is σ = 68809212240. Its totient is φ = 66523441248.

The previous prime is 67664342033. The next prime is 67664342063. The reversal of 67664342051 is 15024346676.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 67664342051 - 2¹⁰ = 67664341027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67664341993 and 67664342011.

It is not an unprimeable number, because it can be changed into a prime (67664342651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 957956 + ... + 1026161.

It is an arithmetic number, because the mean of its divisors is an integer number (8601151530).

Almost surely, 2^67664342051 is an apocalyptic number.

67664342051 is a deficient number, since it is larger than the sum of its proper divisors (1144870189).

67664342051 is a wasteful number, since it uses less digits than its factorization.

67664342051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1984693.

The product of its (nonzero) digits is 725760, while the sum is 44.

The spelling of 67664342051 in words is "sixty-seven billion, six hundred sixty-four million, three hundred forty-two thousand, fifty-one".