66141707815 has 8 divisors (see below), whose sum is σ = 84038875920. Its totient is φ = 49800815232.

The previous prime is 66141707789. The next prime is 66141707837. The reversal of 66141707815 is 51870714166.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66141707815 - 2²⁹ = 65604836903 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389068785 + ... + 389068954.

It is an arithmetic number, because the mean of its divisors is an integer number (10504859490).

Almost surely, 2^66141707815 is an apocalyptic number.

66141707815 is a deficient number, since it is larger than the sum of its proper divisors (17897168105).

66141707815 is a wasteful number, since it uses less digits than its factorization.

66141707815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778137761.

The product of its (nonzero) digits is 282240, while the sum is 46.

The spelling of 66141707815 in words is "sixty-six billion, one hundred forty-one million, seven hundred seven thousand, eight hundred fifteen".