20046006403 has 4 divisors (see below), whose sum is σ = 20271242520. Its totient is φ = 19820770288.

The previous prime is 20046006391. The next prime is 20046006419. The reversal of 20046006403 is 30460064002.

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 20046006403 - 2¹³ = 20045998211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20046006803) 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, 112617925 + ... + 112618102.

It is an arithmetic number, because the mean of its divisors is an integer number (5067810630).

Almost surely, 2^20046006403 is an apocalyptic number.

20046006403 is a deficient number, since it is larger than the sum of its proper divisors (225236117).

20046006403 is an equidigital number, since it uses as much as digits as its factorization.

20046006403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225236116.

The product of its (nonzero) digits is 3456, while the sum is 25.

The spelling of 20046006403 in words is "twenty billion, forty-six million, six thousand, four hundred three".