66362471 has 8 divisors (see below), whose sum is σ = 76237344. Its totient is φ = 56586240.

The previous prime is 66362467. The next prime is 66362473. The reversal of 66362471 is 17426366.

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 66362471 - 2² = 66362467 is a prime.

It is a super-3 number, since 3×66362471³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66362473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23210 + ... + 25911.

It is an arithmetic number, because the mean of its divisors is an integer number (9529668).

Almost surely, 2^66362471 is an apocalyptic number.

66362471 is a deficient number, since it is larger than the sum of its proper divisors (9874873).

66362471 is a wasteful number, since it uses less digits than its factorization.

66362471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49321.

The product of its digits is 36288, while the sum is 35.

The square root of 66362471 is about 8146.3164068185. The cubic root of 66362471 is about 404.8624661285.

The spelling of 66362471 in words is "sixty-six million, three hundred sixty-two thousand, four hundred seventy-one".