2116261063506 has 32 divisors (see below), whose sum is σ = 4236339153600. Its totient is φ = 704784326400.

The previous prime is 2116261063493. The next prime is 2116261063529. The reversal of 2116261063506 is 6053601626112.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95960181 + ... + 95982231.

It is an arithmetic number, because the mean of its divisors is an integer number (132385598550).

Almost surely, 2^{2116261063506} is an apocalyptic number.

2116261063506 is an abundant number, since it is smaller than the sum of its proper divisors (2120078090094).

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

2116261063506 is a wasteful number, since it uses less digits than its factorization.

2116261063506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35754.

The product of its (nonzero) digits is 77760, while the sum is 39.

Adding to 2116261063506 its reverse (6053601626112), we get a palindrome (8169862689618).

The spelling of 2116261063506 in words is "two trillion, one hundred sixteen billion, two hundred sixty-one million, sixty-three thousand, five hundred six".