21456522223058 has 16 divisors (see below), whose sum is σ = 34665478519896. Its totient is φ = 9901598079360.

The previous prime is 21456522223057. The next prime is 21456522223067. The reversal of 21456522223058 is 85032222565412.

It can be written as a sum of positive squares in 4 ways, for example, as 10648846248049 + 10807675975009 = 3263257^2 + 3287503^2 .

It is a super-3 number, since 3×21456522223058³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (21456522223057) 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 7 ways as a sum of consecutive naturals, for example, 58654883 + ... + 59019558.

Almost surely, 2^{21456522223058} is an apocalyptic number.

21456522223058 is a deficient number, since it is larger than the sum of its proper divisors (13208956296838).

21456522223058 is a wasteful number, since it uses less digits than its factorization.

21456522223058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117681469.

The product of its (nonzero) digits is 2304000, while the sum is 47.

The spelling of 21456522223058 in words is "twenty-one trillion, four hundred fifty-six billion, five hundred twenty-two million, two hundred twenty-three thousand, fifty-eight".