60643666040 has 32 divisors (see below), whose sum is σ = 136460252880. Its totient is φ = 24255332352.

The previous prime is 60643666009. The next prime is 60643666079. The reversal of 60643666040 is 4066634606.

60643666040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 441464 + ... + 562296.

Almost surely, 2^60643666040 is an apocalyptic number.

It is an amenable number.

60643666040 is an abundant number, since it is smaller than the sum of its proper divisors (75816586840).

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

60643666040 is a wasteful number, since it uses less digits than its factorization.

60643666040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133391 (or 133387 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 41.

The spelling of 60643666040 in words is "sixty billion, six hundred forty-three million, six hundred sixty-six thousand, forty".