66873905035552 has 24 divisors (see below), whose sum is σ = 132319598544000. Its totient is φ = 33268927627584.

The previous prime is 66873905035501. The next prime is 66873905035577. The reversal of 66873905035552 is 25553050937866.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5250771352 + ... + 5250784087.

It is an arithmetic number, because the mean of its divisors is an integer number (5513316606000).

Almost surely, 2^{66873905035552} is an apocalyptic number.

It is an amenable number.

66873905035552 is a deficient number, since it is larger than the sum of its proper divisors (65445693508448).

66873905035552 is a wasteful number, since it uses less digits than its factorization.

66873905035552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10501555648 (or 10501555640 counting only the distinct ones).

The product of its (nonzero) digits is 204120000, while the sum is 64.

The spelling of 66873905035552 in words is "sixty-six trillion, eight hundred seventy-three billion, nine hundred five million, thirty-five thousand, five hundred fifty-two".