2143916501004 has 96 divisors (see below), whose sum is σ = 5592690028800. Its totient is φ = 710230032000.

The previous prime is 2143916500951. The next prime is 2143916501081. The reversal of 2143916501004 is 4001056193412.

It is a happy number.

2143916501004 is a `hidden beast` number, since 2 + 143 + 9 + 1 + 6 + 501 + 0 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2143916501004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12301827 + ... + 12474885.

It is an arithmetic number, because the mean of its divisors is an integer number (58257187800).

Almost surely, 2^{2143916501004} 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 2143916501004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2796345014400).

2143916501004 is an abundant number, since it is smaller than the sum of its proper divisors (3448773527796).

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

2143916501004 is a wasteful number, since it uses less digits than its factorization.

2143916501004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173780 (or 173772 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 2143916501004 in words is "two trillion, one hundred forty-three billion, nine hundred sixteen million, five hundred one thousand, four".