66151010111 has 8 divisors (see below), whose sum is σ = 68170231584. Its totient is φ = 64151111680.

The previous prime is 66151010089. The next prime is 66151010131. The reversal of 66151010111 is 11101015166.

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 not a de Polignac number, because 66151010111 - 2⁶ = 66151010047 is a prime.

It is a super-2 number, since 2×66151010111² (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 (66151010131) by changing a digit.

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, 4823810 + ... + 4837503.

It is an arithmetic number, because the mean of its divisors is an integer number (8521278948).

Almost surely, 2^66151010111 is an apocalyptic number.

66151010111 is a deficient number, since it is larger than the sum of its proper divisors (2019221473).

66151010111 is a wasteful number, since it uses less digits than its factorization.

66151010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9661521.

The product of its (nonzero) digits is 180, while the sum is 23.

Adding to 66151010111 its reverse (11101015166), we get a palindrome (77252025277).

The spelling of 66151010111 in words is "sixty-six billion, one hundred fifty-one million, ten thousand, one hundred eleven".