66210716119 has 8 divisors (see below), whose sum is σ = 70248253968. Its totient is φ = 62189043840.

The previous prime is 66210716113. The next prime is 66210716137. The reversal of 66210716119 is 91161701266.

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 66210716119 - 2³ = 66210716111 is a prime.

It is a super-2 number, since 2×66210716119² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66210716111) 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, 3957792 + ... + 3974485.

It is an arithmetic number, because the mean of its divisors is an integer number (8781031746).

Almost surely, 2^66210716119 is an apocalyptic number.

66210716119 is a deficient number, since it is larger than the sum of its proper divisors (4037537849).

66210716119 is a wasteful number, since it uses less digits than its factorization.

66210716119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7932785.

The product of its (nonzero) digits is 27216, while the sum is 40.

The spelling of 66210716119 in words is "sixty-six billion, two hundred ten million, seven hundred sixteen thousand, one hundred nineteen".