2016620523725 has 24 divisors (see below), whose sum is σ = 2531654011392. Its totient is φ = 1593368582400.

The previous prime is 2016620523707. The next prime is 2016620523733. The reversal of 2016620523725 is 5273250266102.

It is not a de Polignac number, because 2016620523725 - 2²⁶ = 2016553414861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 461741 + ... + 2060690.

It is an arithmetic number, because the mean of its divisors is an integer number (105485583808).

Almost surely, 2^{2016620523725} is an apocalyptic number.

2016620523725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2016620523725 is a deficient number, since it is larger than the sum of its proper divisors (515033487667).

2016620523725 is a wasteful number, since it uses less digits than its factorization.

2016620523725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2522837 (or 2522832 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 41.

Adding to 2016620523725 its reverse (5273250266102), we get a palindrome (7289870789827).

The spelling of 2016620523725 in words is "two trillion, sixteen billion, six hundred twenty million, five hundred twenty-three thousand, seven hundred twenty-five".