667067406740 has 48 divisors (see below), whose sum is σ = 1695136004352. Its totient is φ = 215255364096.

The previous prime is 667067406697. The next prime is 667067406743. The reversal of 667067406740 is 47604760766.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667067406743) by changing a digit.

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, 140137832 + ... + 140142591.

It is an arithmetic number, because the mean of its divisors is an integer number (35315333424).

Almost surely, 2^667067406740 is an apocalyptic number.

It is an amenable number.

667067406740 is an abundant number, since it is smaller than the sum of its proper divisors (1028068597612).

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

667067406740 is a wasteful number, since it uses less digits than its factorization.

667067406740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280280456 (or 280280454 counting only the distinct ones).

The product of its (nonzero) digits is 7112448, while the sum is 53.

The spelling of 667067406740 in words is "six hundred sixty-seven billion, sixty-seven million, four hundred six thousand, seven hundred forty".