66340476 has 36 divisors (see below), whose sum is σ = 176521800. Its totient is φ = 20949408.

The previous prime is 66340433. The next prime is 66340481. The reversal of 66340476 is 67404366.

It is a tau number, because it is divible by the number of its divisors (36).

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 66340476.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47811 + ... + 49178.

Almost surely, 2^66340476 is an apocalyptic number.

It is an amenable number.

66340476 is an abundant number, since it is smaller than the sum of its proper divisors (110181324).

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

66340476 is a wasteful number, since it uses less digits than its factorization.

66340476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97018 (or 97013 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The square root of 66340476 is about 8144.9662982728. The cubic root of 66340476 is about 404.8177323415.

The spelling of 66340476 in words is "sixty-six million, three hundred forty thousand, four hundred seventy-six".