40666743677 has 8 divisors (see below), whose sum is σ = 47609846592. Its totient is φ = 34007032800.

The previous prime is 40666743643. The next prime is 40666743683. The reversal of 40666743677 is 77634766604.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40666743677 - 2¹⁸ = 40666481533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40666743077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70847699 + ... + 70848272.

It is an arithmetic number, because the mean of its divisors is an integer number (5951230824).

Almost surely, 2^40666743677 is an apocalyptic number.

It is an amenable number.

40666743677 is a deficient number, since it is larger than the sum of its proper divisors (6943102915).

40666743677 is a wasteful number, since it uses less digits than its factorization.

40666743677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141696019.

The product of its (nonzero) digits is 21337344, while the sum is 56.

The spelling of 40666743677 in words is "forty billion, six hundred sixty-six million, seven hundred forty-three thousand, six hundred seventy-seven".