885620665999 has 4 divisors (see below), whose sum is σ = 885691647360. Its totient is φ = 885549684640.

The previous prime is 885620665873. The next prime is 885620666003. The reversal of 885620665999 is 999566026588.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 885620665999 - 2¹³ = 885620657807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (885620666999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35471962 + ... + 35496919.

It is an arithmetic number, because the mean of its divisors is an integer number (221422911840).

Almost surely, 2^885620665999 is an apocalyptic number.

885620665999 is a deficient number, since it is larger than the sum of its proper divisors (70981361).

885620665999 is a wasteful number, since it uses less digits than its factorization.

885620665999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70981360.

The product of its (nonzero) digits is 503884800, while the sum is 73.

The spelling of 885620665999 in words is "eight hundred eighty-five billion, six hundred twenty million, six hundred sixty-five thousand, nine hundred ninety-nine".