21081330456483 has 32 divisors (see below), whose sum is σ = 30683232986112. Its totient is φ = 12768449191200.

The previous prime is 21081330456443. The next prime is 21081330456491. The reversal of 21081330456483 is 38465403318012.

It is not a de Polignac number, because 21081330456483 - 2¹² = 21081330452387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21081330456443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 648021928 + ... + 648054458.

It is an arithmetic number, because the mean of its divisors is an integer number (958851030816).

Almost surely, 2^{21081330456483} is an apocalyptic number.

21081330456483 is a deficient number, since it is larger than the sum of its proper divisors (9601902529629).

21081330456483 is a wasteful number, since it uses less digits than its factorization.

21081330456483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44415.

The product of its (nonzero) digits is 1658880, while the sum is 48.

The spelling of 21081330456483 in words is "twenty-one trillion, eighty-one billion, three hundred thirty million, four hundred fifty-six thousand, four hundred eighty-three".