667474680674 has 16 divisors (see below), whose sum is σ = 1002046743936. Its totient is φ = 333459168000.

The previous prime is 667474680673. The next prime is 667474680683. The reversal of 667474680674 is 476086474766.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 667474680674.

It is not an unprimeable number, because it can be changed into a prime (667474680673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29365634 + ... + 29388354.

It is an arithmetic number, because the mean of its divisors is an integer number (62627921496).

Almost surely, 2^667474680674 is an apocalyptic number.

667474680674 is a deficient number, since it is larger than the sum of its proper divisors (334572063262).

667474680674 is a wasteful number, since it uses less digits than its factorization.

667474680674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34321.

The product of its (nonzero) digits is 227598336, while the sum is 65.

The spelling of 667474680674 in words is "six hundred sixty-seven billion, four hundred seventy-four million, six hundred eighty thousand, six hundred seventy-four".