20466081059 has 4 divisors (see below), whose sum is σ = 21543243240. Its totient is φ = 19388918880.

The previous prime is 20466081047. The next prime is 20466081067. The reversal of 20466081059 is 95018066402.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20466081059 - 2²⁴ = 20449303843 is a prime.

It is a super-2 number, since 2×20466081059² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20466081019) 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, 538581062 + ... + 538581099.

It is an arithmetic number, because the mean of its divisors is an integer number (5385810810).

Almost surely, 2^20466081059 is an apocalyptic number.

20466081059 is a deficient number, since it is larger than the sum of its proper divisors (1077162181).

20466081059 is a wasteful number, since it uses less digits than its factorization.

20466081059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077162180.

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 20466081059 in words is "twenty billion, four hundred sixty-six million, eighty-one thousand, fifty-nine".