21866006283 has 16 divisors (see below), whose sum is σ = 31808779392. Its totient is φ = 13250592000.

The previous prime is 21866006273. The next prime is 21866006299. The reversal of 21866006283 is 38260066812.

It is not a de Polignac number, because 21866006283 - 2¹⁸ = 21865744139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21866006273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294363 + ... + 361083.

It is an arithmetic number, because the mean of its divisors is an integer number (1988048712).

Almost surely, 2^21866006283 is an apocalyptic number.

21866006283 is a deficient number, since it is larger than the sum of its proper divisors (9942773109).

21866006283 is a wasteful number, since it uses less digits than its factorization.

21866006283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76666.

The product of its (nonzero) digits is 165888, while the sum is 42.

The spelling of 21866006283 in words is "twenty-one billion, eight hundred sixty-six million, six thousand, two hundred eighty-three".