667407040004 has 36 divisors (see below), whose sum is σ = 1244189936304. Its totient is φ = 313185523248.

The previous prime is 667407039913. The next prime is 667407040007. The reversal of 667407040004 is 400040704766.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a self number, because there is not a number n which added to its sum of digits gives 667407040004.

It is not an unprimeable number, because it can be changed into a prime (667407040007) 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 11 ways as a sum of consecutive naturals, for example, 2005274 + ... + 2314289.

It is an arithmetic number, because the mean of its divisors is an integer number (34560831564).

Almost surely, 2^667407040004 is an apocalyptic number.

It is an amenable number.

667407040004 is a deficient number, since it is larger than the sum of its proper divisors (576782896300).

667407040004 is a wasteful number, since it uses less digits than its factorization.

667407040004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4319712 (or 4319691 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 38.

The spelling of 667407040004 in words is "six hundred sixty-seven billion, four hundred seven million, forty thousand, four".