20257543461001 has 32 divisors (see below), whose sum is σ = 25290216806400. Its totient is φ = 15763816684800.

The previous prime is 20257543460981. The next prime is 20257543461007. The reversal of 20257543461001 is 10016434575202.

It is a cyclic number.

It is not a de Polignac number, because 20257543461001 - 2⁷ = 20257543460873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20257543461007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 852327220 + ... + 852350986.

It is an arithmetic number, because the mean of its divisors is an integer number (790319275200).

Almost surely, 2^{20257543461001} is an apocalyptic number.

It is an amenable number.

20257543461001 is a deficient number, since it is larger than the sum of its proper divisors (5032673345399).

20257543461001 is a wasteful number, since it uses less digits than its factorization.

20257543461001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38245.

The product of its (nonzero) digits is 201600, while the sum is 40.

The spelling of 20257543461001 in words is "twenty trillion, two hundred fifty-seven billion, five hundred forty-three million, four hundred sixty-one thousand, one".