60666646644 has 36 divisors (see below), whose sum is σ = 155292970560. Its totient is φ = 19966237200.

The previous prime is 60666646613. The next prime is 60666646673. The reversal of 60666646644 is 44664666606.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10662882 + ... + 10668569.

Almost surely, 2^60666646644 is an apocalyptic number.

It is an amenable number.

60666646644 is an abundant number, since it is smaller than the sum of its proper divisors (94626323916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

60666646644 is a wasteful number, since it uses less digits than its factorization.

60666646644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21331540 (or 21331535 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 54.

The spelling of 60666646644 in words is "sixty billion, six hundred sixty-six million, six hundred forty-six thousand, six hundred forty-four".