21114006016 has 40 divisors (see below), whose sum is σ = 42982805844. Its totient is φ = 10357800960.

The previous prime is 21114005981. The next prime is 21114006019. The reversal of 21114006016 is 61060041112.

It can be written as a sum of positive squares in 2 ways, for example, as 20823644416 + 290361600 = 144304^2 + 17040^2 .

It is not an unprimeable number, because it can be changed into a prime (21114006019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361905 + ... + 416176.

Almost surely, 2^21114006016 is an apocalyptic number.

It is an amenable number.

21114006016 is an abundant number, since it is smaller than the sum of its proper divisors (21868799828).

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

21114006016 is an frugal number, since it uses more digits than its factorization.

21114006016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778152 (or 778136 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 21114006016 its reverse (61060041112), we get a palindrome (82174047128).

The spelling of 21114006016 in words is "twenty-one billion, one hundred fourteen million, six thousand, sixteen".