66171102 has 16 divisors (see below), whose sum is σ = 132552720. Its totient is φ = 22021952.

The previous prime is 66171101. The next prime is 66171103. The reversal of 66171102 is 20117166.

It is an interprime number because it is at equal distance from previous prime (66171101) and next prime (66171103).

It is a super-2 number, since 2×66171102² = 8757229479788808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66171101) 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, 4527 + ... + 12362.

It is an arithmetic number, because the mean of its divisors is an integer number (8284545).

Almost surely, 2^66171102 is an apocalyptic number.

66171102 is an abundant number, since it is smaller than the sum of its proper divisors (66381618).

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

66171102 is a wasteful number, since it uses less digits than its factorization.

66171102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17547.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 66171102 is about 8134.5621885877. The cubic root of 66171102 is about 404.4729250820.

Adding to 66171102 its reverse (20117166), we get a palindrome (86288268).

The spelling of 66171102 in words is "sixty-six million, one hundred seventy-one thousand, one hundred two".