40669616887 has 2 divisors, whose sum is σ = 40669616888. Its totient is φ = 40669616886.

The previous prime is 40669616857. The next prime is 40669616917. The reversal of 40669616887 is 78861696604.

It is a balanced prime because it is at equal distance from previous prime (40669616857) and next prime (40669616917).

It is a cyclic number.

It is not a de Polignac number, because 40669616887 - 2⁷ = 40669616759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40669616837) 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, 20334808443 + 20334808444.

It is an arithmetic number, because the mean of its divisors is an integer number (20334808444).

Almost surely, 2^40669616887 is an apocalyptic number.

40669616887 is a deficient number, since it is larger than the sum of its proper divisors (1).

40669616887 is an equidigital number, since it uses as much as digits as its factorization.

40669616887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20901888, while the sum is 61.

The spelling of 40669616887 in words is "forty billion, six hundred sixty-nine million, six hundred sixteen thousand, eight hundred eighty-seven".