66213300111 has 12 divisors (see below), whose sum is σ = 102698179992. Its totient is φ = 37836171408.

The previous prime is 66213300107. The next prime is 66213300133. The reversal of 66213300111 is 11100331266.

It is not a de Polignac number, because 66213300111 - 2² = 66213300107 is a prime.

It is a super-2 number, since 2×66213300111² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66213300211) 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 11 ways as a sum of consecutive naturals, for example, 225215160 + ... + 225215453.

It is an arithmetic number, because the mean of its divisors is an integer number (8558181666).

Almost surely, 2^66213300111 is an apocalyptic number.

66213300111 is a deficient number, since it is larger than the sum of its proper divisors (36484879881).

66213300111 is a wasteful number, since it uses less digits than its factorization.

66213300111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450430630 (or 450430623 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 66213300111 its reverse (11100331266), we get a palindrome (77313631377).

The spelling of 66213300111 in words is "sixty-six billion, two hundred thirteen million, three hundred thousand, one hundred eleven".