667344070340 has 48 divisors (see below), whose sum is σ = 1466544441600. Its totient is φ = 254599973760.

The previous prime is 667344070331. The next prime is 667344070343. The reversal of 667344070340 is 43070443766.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 667344070291 and 667344070300.

It is not an unprimeable number, because it can be changed into a prime (667344070343) 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 15 ways as a sum of consecutive naturals, for example, 1917896 + ... + 2238975.

It is an arithmetic number, because the mean of its divisors is an integer number (30553009200).

Almost surely, 2^667344070340 is an apocalyptic number.

It is an amenable number.

667344070340 is an abundant number, since it is smaller than the sum of its proper divisors (799200371260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

667344070340 is a wasteful number, since it uses less digits than its factorization.

667344070340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4157252 (or 4157250 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 44.

The spelling of 667344070340 in words is "six hundred sixty-seven billion, three hundred forty-four million, seventy thousand, three hundred forty".