20461016403 has 24 divisors (see below), whose sum is σ = 29728240256. Its totient is φ = 13560825600.

The previous prime is 20461016399. The next prime is 20461016431. The reversal of 20461016403 is 30461016402.

20461016403 is a `hidden beast` number, since 2 + 0 + 4 + 6 + 10 + 1 + 640 + 3 = 666.

It is not a de Polignac number, because 20461016403 - 2² = 20461016399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20461016473) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1308813 + ... + 1324353.

Almost surely, 2^20461016403 is an apocalyptic number.

20461016403 is a deficient number, since it is larger than the sum of its proper divisors (9267223853).

20461016403 is a wasteful number, since it uses less digits than its factorization.

20461016403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16395 (or 16392 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Subtracting 20461016403 from its reverse (30461016402), we obtain a palindrome (9999999999).

The spelling of 20461016403 in words is "twenty billion, four hundred sixty-one million, sixteen thousand, four hundred three".