66213142301517 has 8 divisors (see below), whose sum is σ = 92122632767424. Its totient is φ = 42222873351648.

The previous prime is 66213142301507. The next prime is 66213142301533. The reversal of 66213142301517 is 71510324131266.

It is a happy number.

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

It is not a de Polignac number, because 66213142301517 - 2¹⁰ = 66213142300493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66213142301507) 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, 479805378928 + ... + 479805379065.

It is an arithmetic number, because the mean of its divisors is an integer number (11515329095928).

Almost surely, 2^{66213142301517} is an apocalyptic number.

It is an amenable number.

66213142301517 is a deficient number, since it is larger than the sum of its proper divisors (25909490465907).

66213142301517 is a wasteful number, since it uses less digits than its factorization.

66213142301517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959610758019.

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 66213142301517 in words is "sixty-six trillion, two hundred thirteen billion, one hundred forty-two million, three hundred one thousand, five hundred seventeen".