840666424095 has 64 divisors (see below), whose sum is σ = 1545434542080. Its totient is φ = 433131235200.

The previous prime is 840666424069. The next prime is 840666424097. The reversal of 840666424095 is 590424666048.

It is not a de Polignac number, because 840666424095 - 2⁷ = 840666423967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840666424097) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2213737 + ... + 2565533.

It is an arithmetic number, because the mean of its divisors is an integer number (24147414720).

Almost surely, 2^840666424095 is an apocalyptic number.

840666424095 is a deficient number, since it is larger than the sum of its proper divisors (704768117985).

840666424095 is a wasteful number, since it uses less digits than its factorization.

840666424095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352413 (or 352407 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 54.

The spelling of 840666424095 in words is "eight hundred forty billion, six hundred sixty-six million, four hundred twenty-four thousand, ninety-five".