66683111548 has 24 divisors (see below), whose sum is σ = 121662314928. Its totient is φ = 31951710336.

The previous prime is 66683111533. The next prime is 66683111549. The reversal of 66683111548 is 84511138666.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66683111549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3648361 + ... + 3666592.

It is an arithmetic number, because the mean of its divisors is an integer number (5069263122).

Almost surely, 2^66683111548 is an apocalyptic number.

It is an amenable number.

66683111548 is a deficient number, since it is larger than the sum of its proper divisors (54979203380).

66683111548 is a wasteful number, since it uses less digits than its factorization.

66683111548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7315053 (or 7315051 counting only the distinct ones).

The product of its digits is 829440, while the sum is 49.

The spelling of 66683111548 in words is "sixty-six billion, six hundred eighty-three million, one hundred eleven thousand, five hundred forty-eight".