66501060616715 has 8 divisors (see below), whose sum is σ = 82375507344768. Its totient is φ = 51484692090240.

The previous prime is 66501060616703. The next prime is 66501060616747. The reversal of 66501060616715 is 51761606010566.

66501060616715 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 66501060616715 - 2⁴ = 66501060616699 is a prime.

It is a super-2 number, since 2×66501060616715² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214519550222 + ... + 214519550531.

It is an arithmetic number, because the mean of its divisors is an integer number (10296938418096).

Almost surely, 2^{66501060616715} is an apocalyptic number.

66501060616715 is a deficient number, since it is larger than the sum of its proper divisors (15874446728053).

66501060616715 is a wasteful number, since it uses less digits than its factorization.

66501060616715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429039100789.

The product of its (nonzero) digits is 1360800, while the sum is 50.

The spelling of 66501060616715 in words is "sixty-six trillion, five hundred one billion, sixty million, six hundred sixteen thousand, seven hundred fifteen".