667207355442 has 32 divisors (see below), whose sum is σ = 1392554308608. Its totient is φ = 212714207376.

The previous prime is 667207355429. The next prime is 667207355497. The reversal of 667207355442 is 244553702766.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1420893 + ... + 1831215.

It is an arithmetic number, because the mean of its divisors is an integer number (43517322144).

Almost surely, 2^667207355442 is an apocalyptic number.

667207355442 is an abundant number, since it is smaller than the sum of its proper divisors (725346953166).

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

667207355442 is a wasteful number, since it uses less digits than its factorization.

667207355442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422134.

The product of its (nonzero) digits is 8467200, while the sum is 51.

The spelling of 667207355442 in words is "six hundred sixty-seven billion, two hundred seven million, three hundred fifty-five thousand, four hundred forty-two".