66101187258724 has 12 divisors (see below), whose sum is σ = 115708418036848. Its totient is φ = 33041639248200.

The previous prime is 66101187258703. The next prime is 66101187258727. The reversal of 66101187258724 is 42785278110166.

It is not an unprimeable number, because it can be changed into a prime (66101187258727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2238578682 + ... + 2238608209.

Almost surely, 2^{66101187258724} is an apocalyptic number.

It is an amenable number.

66101187258724 is a deficient number, since it is larger than the sum of its proper divisors (49607230778124).

66101187258724 is a wasteful number, since it uses less digits than its factorization.

66101187258724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4477190586 (or 4477190584 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 58.

The spelling of 66101187258724 in words is "sixty-six trillion, one hundred one billion, one hundred eighty-seven million, two hundred fifty-eight thousand, seven hundred twenty-four".