8000185605321 has 128 divisors (see below), whose sum is σ = 13625173094400. Its totient is φ = 4061204904960.

The previous prime is 8000185605311. The next prime is 8000185605341. The reversal of 8000185605321 is 1235065810008.

It is not a de Polignac number, because 8000185605321 - 2⁹ = 8000185604809 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 8000185605321.

It is not an unprimeable number, because it can be changed into a prime (8000185605311) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4417550506 + ... + 4417552316.

It is an arithmetic number, because the mean of its divisors is an integer number (106446664800).

Almost surely, 2^{8000185605321} is an apocalyptic number.

It is an amenable number.

8000185605321 is a deficient number, since it is larger than the sum of its proper divisors (5624987489079).

8000185605321 is a wasteful number, since it uses less digits than its factorization.

8000185605321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3359.

The product of its (nonzero) digits is 57600, while the sum is 39.

The spelling of 8000185605321 in words is "eight trillion, one hundred eighty-five million, six hundred five thousand, three hundred twenty-one".