66476541 has 8 divisors (see below), whose sum is σ = 88705440. Its totient is φ = 44282672.

The previous prime is 66476537. The next prime is 66476567. The reversal of 66476541 is 14567466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66476541 - 2² = 66476537 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66476541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66476441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3951 + ... + 12188.

It is an arithmetic number, because the mean of its divisors is an integer number (11088180).

Almost surely, 2^66476541 is an apocalyptic number.

It is an amenable number.

66476541 is a deficient number, since it is larger than the sum of its proper divisors (22228899).

66476541 is a wasteful number, since it uses less digits than its factorization.

66476541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17515.

The product of its digits is 120960, while the sum is 39.

The square root of 66476541 is about 8153.3147246994. The cubic root of 66476541 is about 405.0943051234.

The spelling of 66476541 in words is "sixty-six million, four hundred seventy-six thousand, five hundred forty-one".