21616413601124 has 24 divisors (see below), whose sum is σ = 38457399693888. Its totient is φ = 10628663761440.

The previous prime is 21616413601121. The next prime is 21616413601183. The reversal of 21616413601124 is 42110631461612.

It is not an unprimeable number, because it can be changed into a prime (21616413601121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8728544 + ... + 10927959.

It is an arithmetic number, because the mean of its divisors is an integer number (1602391653912).

Almost surely, 2^{21616413601124} is an apocalyptic number.

It is an amenable number.

21616413601124 is a deficient number, since it is larger than the sum of its proper divisors (16840986092764).

21616413601124 is a wasteful number, since it uses less digits than its factorization.

21616413601124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19661075 (or 19661073 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The spelling of 21616413601124 in words is "twenty-one trillion, six hundred sixteen billion, four hundred thirteen million, six hundred one thousand, one hundred twenty-four".