20461016401 has 8 divisors (see below), whose sum is σ = 23387388800. Its totient is φ = 17535486528.

The previous prime is 20461016399. The next prime is 20461016431. The reversal of 20461016401 is 10461016402.

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

It is not a de Polignac number, because 20461016401 - 2¹ = 20461016399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20461016431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157701 + ... + 256498.

It is an arithmetic number, because the mean of its divisors is an integer number (2923423600).

Almost surely, 2^20461016401 is an apocalyptic number.

It is an amenable number.

20461016401 is a deficient number, since it is larger than the sum of its proper divisors (2926372399).

20461016401 is an equidigital number, since it uses as much as digits as its factorization.

20461016401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421263.

The product of its (nonzero) digits is 1152, while the sum is 25.

Subtracting from 20461016401 its reverse (10461016402), we obtain a palindrome (9999999999).

It can be divided in two parts, 2046101 and 6401, that added together give a palindrome (2052502).

The spelling of 20461016401 in words is "twenty billion, four hundred sixty-one million, sixteen thousand, four hundred one".