841680661000 has 64 divisors (see below), whose sum is σ = 1969732280880. Its totient is φ = 336638156800.

The previous prime is 841680660967. The next prime is 841680661033. The reversal of 841680661000 is 166086148.

It is an interprime number because it is at equal distance from previous prime (841680660967) and next prime (841680661033).

It can be written as a sum of positive squares in 8 ways, for example, as 10290479364 + 831390181636 = 101442^2 + 911806^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11356062 + ... + 11429938.

Almost surely, 2^841680661000 is an apocalyptic number.

It is an amenable number.

841680661000 is an abundant number, since it is smaller than the sum of its proper divisors (1128051619880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

841680661000 is a wasteful number, since it uses less digits than its factorization.

841680661000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85291 (or 85277 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The spelling of 841680661000 in words is "eight hundred forty-one billion, six hundred eighty million, six hundred sixty-one thousand".