40666258287 has 12 divisors (see below), whose sum is σ = 58814799160. Its totient is φ = 27076385808.

The previous prime is 40666258267. The next prime is 40666258307. The reversal of 40666258287 is 78285266604.

It is an interprime number because it is at equal distance from previous prime (40666258267) and next prime (40666258307).

It is not a de Polignac number, because 40666258287 - 2¹⁰ = 40666257263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40666258267) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2863612 + ... + 2877777.

Almost surely, 2^40666258287 is an apocalyptic number.

40666258287 is a deficient number, since it is larger than the sum of its proper divisors (18148540873).

40666258287 is a wasteful number, since it uses less digits than its factorization.

40666258287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5742182 (or 5742179 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 54.

The spelling of 40666258287 in words is "forty billion, six hundred sixty-six million, two hundred fifty-eight thousand, two hundred eighty-seven".