66482175381 has 8 divisors (see below), whose sum is σ = 89040403200. Its totient is φ = 44122698912.

The previous prime is 66482175377. The next prime is 66482175391. The reversal of 66482175381 is 18357128466.

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

It is not a de Polignac number, because 66482175381 - 2² = 66482175377 is a prime.

It is a super-2 number, since 2×66482175381² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66482175301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49687056 + ... + 49688393.

It is an arithmetic number, because the mean of its divisors is an integer number (11130050400).

Almost surely, 2^66482175381 is an apocalyptic number.

It is an amenable number.

66482175381 is a deficient number, since it is larger than the sum of its proper divisors (22558227819).

66482175381 is a wasteful number, since it uses less digits than its factorization.

66482175381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99375675.

The product of its digits is 1935360, while the sum is 51.

The spelling of 66482175381 in words is "sixty-six billion, four hundred eighty-two million, one hundred seventy-five thousand, three hundred eighty-one".