667420607362 has 4 divisors (see below), whose sum is σ = 1001130911046. Its totient is φ = 333710303680.

The previous prime is 667420607327. The next prime is 667420607369. The reversal of 667420607362 is 263706024766.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 647508293041 + 19912314321 = 804679^2 + 141111^2 .

It is not an unprimeable number, because it can be changed into a prime (667420607369) 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 as a sum of consecutive naturals, namely, 166855151839 + ... + 166855151842.

Almost surely, 2^667420607362 is an apocalyptic number.

667420607362 is a deficient number, since it is larger than the sum of its proper divisors (333710303684).

667420607362 is a wasteful number, since it uses less digits than its factorization.

667420607362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333710303683.

The product of its (nonzero) digits is 3048192, while the sum is 49.

The spelling of 667420607362 in words is "six hundred sixty-seven billion, four hundred twenty million, six hundred seven thousand, three hundred sixty-two".