40466456677 has 2 divisors, whose sum is σ = 40466456678. Its totient is φ = 40466456676.

The previous prime is 40466456669. The next prime is 40466456689. The reversal of 40466456677 is 77665466404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38069472996 + 2396983681 = 195114^2 + 48959^2 .

It is a cyclic number.

It is not a de Polignac number, because 40466456677 - 2³ = 40466456669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40466456377) 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 as a sum of consecutive naturals, namely, 20233228338 + 20233228339.

It is an arithmetic number, because the mean of its divisors is an integer number (20233228339).

Almost surely, 2^40466456677 is an apocalyptic number.

It is an amenable number.

40466456677 is a deficient number, since it is larger than the sum of its proper divisors (1).

40466456677 is an equidigital number, since it uses as much as digits as its factorization.

40466456677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20321280, while the sum is 55.

The spelling of 40466456677 in words is "forty billion, four hundred sixty-six million, four hundred fifty-six thousand, six hundred seventy-seven".