667703282146 has 8 divisors (see below), whose sum is σ = 1025983092204. Its totient is φ = 325708918080.

The previous prime is 667703282137. The next prime is 667703282149. The reversal of 667703282146 is 641282307766.

It can be written as a sum of positive squares in 2 ways, for example, as 639742425921 + 27960856225 = 799839^2 + 167215^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 667703282093 and 667703282102.

It is not an unprimeable number, because it can be changed into a prime (667703282149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4071361395 + ... + 4071361558.

Almost surely, 2^667703282146 is an apocalyptic number.

667703282146 is a deficient number, since it is larger than the sum of its proper divisors (358279810058).

667703282146 is a wasteful number, since it uses less digits than its factorization.

667703282146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8142722996.

The product of its (nonzero) digits is 4064256, while the sum is 52.

The spelling of 667703282146 in words is "six hundred sixty-seven billion, seven hundred three million, two hundred eighty-two thousand, one hundred forty-six".