2116656523146 has 32 divisors (see below), whose sum is σ = 4742974819008. Its totient is φ = 624075632640.

The previous prime is 2116656523123. The next prime is 2116656523147. The reversal of 2116656523146 is 6413256566112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2116656523095 and 2116656523104.

It is not an unprimeable number, because it can be changed into a prime (2116656523147) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 433383415 + ... + 433388298.

It is an arithmetic number, because the mean of its divisors is an integer number (148217963094).

Almost surely, 2^{2116656523146} is an apocalyptic number.

2116656523146 is an abundant number, since it is smaller than the sum of its proper divisors (2626318295862).

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

2116656523146 is a wasteful number, since it uses less digits than its factorization.

2116656523146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866771766.

The product of its digits is 1555200, while the sum is 48.

The spelling of 2116656523146 in words is "two trillion, one hundred sixteen billion, six hundred fifty-six million, five hundred twenty-three thousand, one hundred forty-six".