60666646645 has 24 divisors (see below), whose sum is σ = 80156597472. Its totient is φ = 44045775840.

The previous prime is 60666646613. The next prime is 60666646673. The reversal of 60666646645 is 54664666606.

It is not a de Polignac number, because 60666646645 - 2⁵ = 60666646613 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a Duffinian 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 23 ways as a sum of consecutive naturals, for example, 269722 + ... + 440548.

It is an arithmetic number, because the mean of its divisors is an integer number (3339858228).

Almost surely, 2^60666646645 is an apocalyptic number.

It is an amenable number.

60666646645 is a deficient number, since it is larger than the sum of its proper divisors (19489950827).

60666646645 is a wasteful number, since it uses less digits than its factorization.

60666646645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171441 (or 171430 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 55.

The spelling of 60666646645 in words is "sixty billion, six hundred sixty-six million, six hundred forty-six thousand, six hundred forty-five".