66363743012 has 24 divisors (see below), whose sum is σ = 136314717504. Its totient is φ = 27672911712.

The previous prime is 66363742987. The next prime is 66363743021. The reversal of 66363743012 is 21034736366.

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, 32027798 + ... + 32029869.

It is an arithmetic number, because the mean of its divisors is an integer number (5679779896).

Almost surely, 2^66363743012 is an apocalyptic number.

It is an amenable number.

66363743012 is an abundant number, since it is smaller than the sum of its proper divisors (69950974492).

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

66363743012 is a wasteful number, since it uses less digits than its factorization.

66363743012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64057715 (or 64057713 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 41.

The spelling of 66363743012 in words is "sixty-six billion, three hundred sixty-three million, seven hundred forty-three thousand, twelve".