6660500520701 has 4 divisors (see below), whose sum is σ = 6660679974912. Its totient is φ = 6660321066492.

The previous prime is 6660500520659. The next prime is 6660500520727. The reversal of 6660500520701 is 1070250050666.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6660500520701 - 2¹⁸ = 6660500258557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6660500520781) 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, 89671421 + ... + 89745666.

It is an arithmetic number, because the mean of its divisors is an integer number (1665169993728).

Almost surely, 2^{6660500520701} is an apocalyptic number.

It is an amenable number.

6660500520701 is a deficient number, since it is larger than the sum of its proper divisors (179454211).

6660500520701 is a wasteful number, since it uses less digits than its factorization.

6660500520701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179454210.

The product of its (nonzero) digits is 75600, while the sum is 38.

The spelling of 6660500520701 in words is "six trillion, six hundred sixty billion, five hundred million, five hundred twenty thousand, seven hundred one".