40666101312677 has 2 divisors, whose sum is σ = 40666101312678. Its totient is φ = 40666101312676.

The previous prime is 40666101312667. The next prime is 40666101312787. The reversal of 40666101312677 is 77621310166604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36459967927681 + 4206133384996 = 6038209^2 + 2050886^2 .

It is a cyclic number.

It is not a de Polignac number, because 40666101312677 - 2²⁶ = 40666034203813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40666101312647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20333050656338 + 20333050656339.

It is an arithmetic number, because the mean of its divisors is an integer number (20333050656339).

Almost surely, 2^{40666101312677} is an apocalyptic number.

It is an amenable number.

40666101312677 is a deficient number, since it is larger than the sum of its proper divisors (1).

40666101312677 is an equidigital number, since it uses as much as digits as its factorization.

40666101312677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1524096, while the sum is 50.

The spelling of 40666101312677 in words is "forty trillion, six hundred sixty-six billion, one hundred one million, three hundred twelve thousand, six hundred seventy-seven".