667368402346 has 16 divisors (see below), whose sum is σ = 1025612307720. Its totient is φ = 325499915520.

The previous prime is 667368402313. The next prime is 667368402347. The reversal of 667368402346 is 643204863766.

It can be written as a sum of positive squares in 4 ways, for example, as 529708851721 + 137659550625 = 727811^2 + 371025^2 .

It is not an unprimeable number, because it can be changed into a prime (667368402347) 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, 21520 + ... + 1155508.

Almost surely, 2^667368402346 is an apocalyptic number.

667368402346 is a deficient number, since it is larger than the sum of its proper divisors (358243905374).

667368402346 is a wasteful number, since it uses less digits than its factorization.

667368402346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141209.

The product of its (nonzero) digits is 20901888, while the sum is 55.

The spelling of 667368402346 in words is "six hundred sixty-seven billion, three hundred sixty-eight million, four hundred two thousand, three hundred forty-six".