20546634001 has 4 divisors (see below), whose sum is σ = 20619237232. Its totient is φ = 20474030772.

The previous prime is 20546633969. The next prime is 20546634041. The reversal of 20546634001 is 10043664502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20546634001 - 2⁵ = 20546633969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20546634041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36301191 + ... + 36301756.

It is an arithmetic number, because the mean of its divisors is an integer number (5154809308).

Almost surely, 2^20546634001 is an apocalyptic number.

It is an amenable number.

20546634001 is a deficient number, since it is larger than the sum of its proper divisors (72603231).

20546634001 is an equidigital number, since it uses as much as digits as its factorization.

20546634001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72603230.

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 20546634001 in words is "twenty billion, five hundred forty-six million, six hundred thirty-four thousand, one".