67158148661 has 8 divisors (see below), whose sum is σ = 74200307904. Its totient is φ = 60459509440.

The previous prime is 67158148637. The next prime is 67158148669. The reversal of 67158148661 is 16684185176.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67158148661 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 (67158148669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85879595 + ... + 85880376.

It is an arithmetic number, because the mean of its divisors is an integer number (9275038488).

Almost surely, 2^67158148661 is an apocalyptic number.

It is an amenable number.

67158148661 is a deficient number, since it is larger than the sum of its proper divisors (7042159243).

67158148661 is a wasteful number, since it uses less digits than its factorization.

67158148661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171760011.

The product of its digits is 1935360, while the sum is 53.

The spelling of 67158148661 in words is "sixty-seven billion, one hundred fifty-eight million, one hundred forty-eight thousand, six hundred sixty-one".