20446006399 has 8 divisors (see below), whose sum is σ = 25164315680. Its totient is φ = 16177059936.

The previous prime is 20446006393. The next prime is 20446006409. The reversal of 20446006399 is 99360064402.

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

It is a cyclic number.

It is not a de Polignac number, because 20446006399 - 2¹³ = 20445998207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20446006393) 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, 112340604 + ... + 112340785.

It is an arithmetic number, because the mean of its divisors is an integer number (3145539460).

Almost surely, 2^20446006399 is an apocalyptic number.

20446006399 is a deficient number, since it is larger than the sum of its proper divisors (4718309281).

20446006399 is a wasteful number, since it uses less digits than its factorization.

20446006399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224681409.

The product of its (nonzero) digits is 279936, while the sum is 43.

The spelling of 20446006399 in words is "twenty billion, four hundred forty-six million, six thousand, three hundred ninety-nine".