866802148881087 has 8 divisors (see below), whose sum is σ = 1156532708643840. Its totient is φ = 577469844186200.

The previous prime is 866802148881049. The next prime is 866802148881103. The reversal of 866802148881087 is 780188841208668.

866802148881087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 866802148881087 - 2⁷ = 866802148880959 is a prime.

It is a super-2 number, since 2×866802148881087² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866802148881887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99563761887 + ... + 99563770592.

It is an arithmetic number, because the mean of its divisors is an integer number (144566588580480).

Almost surely, 2^{866802148881087} is an apocalyptic number.

866802148881087 is a deficient number, since it is larger than the sum of its proper divisors (289730559762753).

866802148881087 is a wasteful number, since it uses less digits than its factorization.

866802148881087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199127533933.

The product of its (nonzero) digits is 528482304, while the sum is 75.

The spelling of 866802148881087 in words is "eight hundred sixty-six trillion, eight hundred two billion, one hundred forty-eight million, eight hundred eighty-one thousand, eighty-seven".