40166466607 has 2 divisors, whose sum is σ = 40166466608. Its totient is φ = 40166466606.

The previous prime is 40166466589. The next prime is 40166466643. The reversal of 40166466607 is 70666466104.

It is a happy number.

40166466607 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40166466607 - 2³¹ = 38018982959 is a prime.

It is a super-2 number, since 2×40166466607² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40166466107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20083233303 + 20083233304.

It is an arithmetic number, because the mean of its divisors is an integer number (20083233304).

Almost surely, 2^40166466607 is an apocalyptic number.

40166466607 is a deficient number, since it is larger than the sum of its proper divisors (1).

40166466607 is an equidigital number, since it uses as much as digits as its factorization.

40166466607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 870912, while the sum is 46.

The spelling of 40166466607 in words is "forty billion, one hundred sixty-six million, four hundred sixty-six thousand, six hundred seven".