999667148284 has 96 divisors (see below), whose sum is σ = 2173022208000. Its totient is φ = 392683826880.

The previous prime is 999667148273. The next prime is 999667148287. The reversal of 999667148284 is 482841766999.

999667148284 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999667148287) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103878297 + ... + 103887919.

It is an arithmetic number, because the mean of its divisors is an integer number (22635648000).

Almost surely, 2^999667148284 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 999667148284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1086511104000).

999667148284 is an abundant number, since it is smaller than the sum of its proper divisors (1173355059716).

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

999667148284 is a wasteful number, since it uses less digits than its factorization.

999667148284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15983 (or 15981 counting only the distinct ones).

The product of its digits is 376233984, while the sum is 73.

The spelling of 999667148284 in words is "nine hundred ninety-nine billion, six hundred sixty-seven million, one hundred forty-eight thousand, two hundred eighty-four".