60668138641 has 4 divisors (see below), whose sum is σ = 66183423984. Its totient is φ = 55152853300.

The previous prime is 60668138621. The next prime is 60668138681. The reversal of 60668138641 is 14683186606.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 60668138641 - 2¹⁵ = 60668105873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60668138621) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2757642655 + ... + 2757642676.

It is an arithmetic number, because the mean of its divisors is an integer number (16545855996).

Almost surely, 2^60668138641 is an apocalyptic number.

It is an amenable number.

60668138641 is a deficient number, since it is larger than the sum of its proper divisors (5515285343).

60668138641 is a wasteful number, since it uses less digits than its factorization.

60668138641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5515285342.

The product of its (nonzero) digits is 995328, while the sum is 49.

The spelling of 60668138641 in words is "sixty billion, six hundred sixty-eight million, one hundred thirty-eight thousand, six hundred forty-one".