66122102 has 16 divisors (see below), whose sum is σ = 103725792. Its totient is φ = 31553280.

The previous prime is 66122057. The next prime is 66122107. The reversal of 66122102 is 20122166.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66122107) 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, 23558 + ... + 26214.

It is an arithmetic number, because the mean of its divisors is an integer number (6482862).

Almost surely, 2^66122102 is an apocalyptic number.

66122102 is a deficient number, since it is larger than the sum of its proper divisors (37603690).

66122102 is a wasteful number, since it uses less digits than its factorization.

66122102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3223.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 66122102 is about 8131.5497907840. The cubic root of 66122102 is about 404.3730624189.

Adding to 66122102 its reverse (20122166), we get a palindrome (86244268).

The spelling of 66122102 in words is "sixty-six million, one hundred twenty-two thousand, one hundred two".