40667400667 has 2 divisors, whose sum is σ = 40667400668. Its totient is φ = 40667400666.

The previous prime is 40667400659. The next prime is 40667400679. The reversal of 40667400667 is 76600476604.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40667400667 - 2³ = 40667400659 is a prime.

It is not a weakly prime, because it can be changed into another prime (40667400167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20333700333 + 20333700334.

It is an arithmetic number, because the mean of its divisors is an integer number (20333700334).

Almost surely, 2^40667400667 is an apocalyptic number.

40667400667 is a deficient number, since it is larger than the sum of its proper divisors (1).

40667400667 is an equidigital number, since it uses as much as digits as its factorization.

40667400667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1016064, while the sum is 46.

The spelling of 40667400667 in words is "forty billion, six hundred sixty-seven million, four hundred thousand, six hundred sixty-seven".