66026740732 has 6 divisors (see below), whose sum is σ = 115546796288. Its totient is φ = 33013370364.

The previous prime is 66026740721. The next prime is 66026740771. The reversal of 66026740732 is 23704762066.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8253342588 + ... + 8253342595.

Almost surely, 2^66026740732 is an apocalyptic number.

It is an amenable number.

66026740732 is a deficient number, since it is larger than the sum of its proper divisors (49520055556).

66026740732 is a wasteful number, since it uses less digits than its factorization.

66026740732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16506685187 (or 16506685185 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 43.

The spelling of 66026740732 in words is "sixty-six billion, twenty-six million, seven hundred forty thousand, seven hundred thirty-two".