66170130 has 32 divisors (see below), whose sum is σ = 171025344. Its totient is φ = 16287936.

The previous prime is 66170123. The next prime is 66170131. The reversal of 66170130 is 3107166.

It is a super-2 number, since 2×66170130² = 8756972208433800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66170130.

It is not an unprimeable number, because it can be changed into a prime (66170131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84444 + ... + 85223.

It is an arithmetic number, because the mean of its divisors is an integer number (5344542).

Almost surely, 2^66170130 is an apocalyptic number.

66170130 is an abundant number, since it is smaller than the sum of its proper divisors (104855214).

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

66170130 is a wasteful number, since it uses less digits than its factorization.

66170130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169690.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 66170130 is about 8134.5024432967. The cubic root of 66170130 is about 404.4709446122.

Adding to 66170130 its reverse (3107166), we get a palindrome (69277296).

The spelling of 66170130 in words is "sixty-six million, one hundred seventy thousand, one hundred thirty".