667375107672 has 128 divisors (see below), whose sum is σ = 2097152870400. Its totient is φ = 172266075648.

The previous prime is 667375107647. The next prime is 667375107689. The reversal of 667375107672 is 276701573766.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3148147 + ... + 3353442.

It is an arithmetic number, because the mean of its divisors is an integer number (16384006800).

Almost surely, 2^667375107672 is an apocalyptic number.

It is an amenable number.

667375107672 is an abundant number, since it is smaller than the sum of its proper divisors (1429777762728).

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

667375107672 is a wasteful number, since it uses less digits than its factorization.

667375107672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6501665 (or 6501661 counting only the distinct ones).

The product of its (nonzero) digits is 15558480, while the sum is 57.

The spelling of 667375107672 in words is "six hundred sixty-seven billion, three hundred seventy-five million, one hundred seven thousand, six hundred seventy-two".