667407474742 has 8 divisors (see below), whose sum is σ = 1001551655016. Its totient is φ = 333556923072.

The previous prime is 667407474733. The next prime is 667407474751. The reversal of 667407474742 is 247474704766.

It is an interprime number because it is at equal distance from previous prime (667407474733) and next prime (667407474751).

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 73401468 + ... + 73410559.

It is an arithmetic number, because the mean of its divisors is an integer number (125193956877).

Almost surely, 2^667407474742 is an apocalyptic number.

667407474742 is a deficient number, since it is larger than the sum of its proper divisors (334144180274).

667407474742 is a wasteful number, since it uses less digits than its factorization.

667407474742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146814302.

The product of its (nonzero) digits is 44255232, while the sum is 58.

The spelling of 667407474742 in words is "six hundred sixty-seven billion, four hundred seven million, four hundred seventy-four thousand, seven hundred forty-two".