66736740666700 has 36 divisors (see below), whose sum is σ = 155958629345680. Its totient is φ = 24641258091840.

The previous prime is 66736740666643. The next prime is 66736740666731. The reversal of 66736740666700 is 766604763766.

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, 25667975880 + ... + 25667978479.

Almost surely, 2^{66736740666700} is an apocalyptic number.

It is an amenable number.

66736740666700 is an abundant number, since it is smaller than the sum of its proper divisors (89221888678980).

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

66736740666700 is a wasteful number, since it uses less digits than its factorization.

66736740666700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51335954386 (or 51335954379 counting only the distinct ones).

The product of its (nonzero) digits is 192036096, while the sum is 64.

The spelling of 66736740666700 in words is "sixty-six trillion, seven hundred thirty-six billion, seven hundred forty million, six hundred sixty-six thousand, seven hundred".