2102500002064 has 160 divisors (see below), whose sum is σ = 5301663528960. Its totient is φ = 783232665600.

The previous prime is 2102500002013. The next prime is 2102500002073. The reversal of 2102500002064 is 4602000052012.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79866024 + ... + 79892344.

It is an arithmetic number, because the mean of its divisors is an integer number (33135397056).

Almost surely, 2^{2102500002064} 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 2102500002064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2650831764480).

2102500002064 is an abundant number, since it is smaller than the sum of its proper divisors (3199163526896).

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

2102500002064 is a wasteful number, since it uses less digits than its factorization.

2102500002064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29189 (or 29183 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 2102500002064 its reverse (4602000052012), we get a palindrome (6704500054076).

The spelling of 2102500002064 in words is "two trillion, one hundred two billion, five hundred million, two thousand, sixty-four".