2516221561146 has 16 divisors (see below), whose sum is σ = 5072068660224. Its totient is φ = 832136264064.

The previous prime is 2516221561111. The next prime is 2516221561169. The reversal of 2516221561146 is 6411651226152.

It is a happy number.

2516221561146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2516221561098 and 2516221561107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1651063255 + ... + 1651064778.

It is an arithmetic number, because the mean of its divisors is an integer number (317004291264).

Almost surely, 2^{2516221561146} is an apocalyptic number.

2516221561146 is an abundant number, since it is smaller than the sum of its proper divisors (2555847099078).

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

2516221561146 is a wasteful number, since it uses less digits than its factorization.

2516221561146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3302128165.

The product of its digits is 172800, while the sum is 42.

Adding to 2516221561146 its reverse (6411651226152), we get a palindrome (8927872787298).

The spelling of 2516221561146 in words is "two trillion, five hundred sixteen billion, two hundred twenty-one million, five hundred sixty-one thousand, one hundred forty-six".