21014466265 has 8 divisors (see below), whose sum is σ = 27157156488. Its totient is φ = 15518375040.

The previous prime is 21014466257. The next prime is 21014466269. The reversal of 21014466265 is 56266441012.

It can be written as a sum of positive squares in 4 ways, for example, as 4333193929 + 16681272336 = 65827^2 + 129156^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21014466265 - 2³ = 21014466257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21014466269) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 161649676 + ... + 161649805.

It is an arithmetic number, because the mean of its divisors is an integer number (3394644561).

Almost surely, 2^21014466265 is an apocalyptic number.

It is an amenable number.

21014466265 is a deficient number, since it is larger than the sum of its proper divisors (6142690223).

21014466265 is a wasteful number, since it uses less digits than its factorization.

21014466265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323299499.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 21014466265 in words is "twenty-one billion, fourteen million, four hundred sixty-six thousand, two hundred sixty-five".