66611106 has 16 divisors (see below), whose sum is σ = 148024800. Its totient is φ = 22203684.

The previous prime is 66611087. The next prime is 66611143. The reversal of 66611106 is 60111666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 66611106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 616716 + ... + 616823.

It is an arithmetic number, because the mean of its divisors is an integer number (9251550).

Almost surely, 2^66611106 is an apocalyptic number.

66611106 is an abundant number, since it is smaller than the sum of its proper divisors (81413694).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66611106 is a wasteful number, since it uses less digits than its factorization.

66611106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233550 (or 1233544 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 66611106 is about 8161.5627180093. The cubic root of 66611106 is about 405.3674579984.

The spelling of 66611106 in words is "sixty-six million, six hundred eleven thousand, one hundred six".