66106476 has 48 divisors (see below), whose sum is σ = 174636000. Its totient is φ = 21617856.

The previous prime is 66106433. The next prime is 66106483. The reversal of 66106476 is 67460166.

66106476 is a `hidden beast` number, since 6 + 6 + 1 + 0 + 647 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 66106476.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51 + ... + 11498.

It is an arithmetic number, because the mean of its divisors is an integer number (3638250).

Almost surely, 2^66106476 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 66106476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87318000).

66106476 is an abundant number, since it is smaller than the sum of its proper divisors (108529524).

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

66106476 is a wasteful number, since it uses less digits than its factorization.

66106476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11615 (or 11607 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 66106476 is about 8130.5889085601. The cubic root of 66106476 is about 404.3412060446.

The spelling of 66106476 in words is "sixty-six million, one hundred six thousand, four hundred seventy-six".