21116150646532 has 12 divisors (see below), whose sum is σ = 36953944638156. Its totient is φ = 10557880749920.

The previous prime is 21116150646439. The next prime is 21116150646677. The reversal of 21116150646532 is 23564605161112.

It can be written as a sum of positive squares in 2 ways, for example, as 13276229046336 + 7839921600196 = 3643656^2 + 2799986^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48399019 + ... + 48833362.

It is an arithmetic number, because the mean of its divisors is an integer number (3079495386513).

Almost surely, 2^{21116150646532} is an apocalyptic number.

It is an amenable number.

21116150646532 is a deficient number, since it is larger than the sum of its proper divisors (15837793991624).

21116150646532 is a wasteful number, since it uses less digits than its factorization.

21116150646532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97286678 (or 97286676 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 43.

The spelling of 21116150646532 in words is "twenty-one trillion, one hundred sixteen billion, one hundred fifty million, six hundred forty-six thousand, five hundred thirty-two".