66116115101 has 8 divisors (see below), whose sum is σ = 66795853824. Its totient is φ = 65436869200.

The previous prime is 66116115061. The next prime is 66116115103. The reversal of 66116115101 is 10151161166.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66116115101 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 (66116115103) 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, 149576 + ... + 393198.

It is an arithmetic number, because the mean of its divisors is an integer number (8349481728).

Almost surely, 2^66116115101 is an apocalyptic number.

It is an amenable number.

66116115101 is a deficient number, since it is larger than the sum of its proper divisors (679738723).

66116115101 is a wasteful number, since it uses less digits than its factorization.

66116115101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246411.

The product of its (nonzero) digits is 1080, while the sum is 29.

Adding to 66116115101 its reverse (10151161166), we get a palindrome (76267276267).

The spelling of 66116115101 in words is "sixty-six billion, one hundred sixteen million, one hundred fifteen thousand, one hundred one".