2016121652 has 12 divisors (see below), whose sum is σ = 3529065540. Its totient is φ = 1007817216.

The previous prime is 2016121621. The next prime is 2016121687. The reversal of 2016121652 is 2561216102.

It can be written as a sum of positive squares in 2 ways, for example, as 1166632336 + 849489316 = 34156^2 + 29146^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41603 + ... + 75914.

It is an arithmetic number, because the mean of its divisors is an integer number (294088795).

Almost surely, 2^2016121652 is an apocalyptic number.

It is an amenable number.

2016121652 is a deficient number, since it is larger than the sum of its proper divisors (1512943888).

2016121652 is a wasteful number, since it uses less digits than its factorization.

2016121652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121810 (or 121808 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 2016121652 is about 44901.2433235428. The cubic root of 2016121652 is about 1263.2973289996.

Adding to 2016121652 its reverse (2561216102), we get a palindrome (4577337754).

The spelling of 2016121652 in words is "two billion, sixteen million, one hundred twenty-one thousand, six hundred fifty-two".