66170076 has 96 divisors (see below), whose sum is σ = 182891520. Its totient is φ = 18230784.

The previous prime is 66170059. The next prime is 66170081. The reversal of 66170076 is 67007166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 396145 + ... + 396311.

It is an arithmetic number, because the mean of its divisors is an integer number (1905120).

Almost surely, 2^66170076 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66170076, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91445760).

66170076 is an abundant number, since it is smaller than the sum of its proper divisors (116721444).

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

66170076 is a wasteful number, since it uses less digits than its factorization.

66170076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 66170076 is about 8134.4991241010. The cubic root of 66170076 is about 404.4708345856.

The spelling of 66170076 in words is "sixty-six million, one hundred seventy thousand, seventy-six".