20941571001 has 16 divisors (see below), whose sum is σ = 31377338496. Its totient is φ = 12326810496.

The previous prime is 20941570963. The next prime is 20941571017. The reversal of 20941571001 is 10017514902.

It is not a de Polignac number, because 20941571001 - 2⁷ = 20941570873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20941571001.

It is not an unprimeable number, because it can be changed into a prime (20941571041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11672220 + ... + 11674013.

It is an arithmetic number, because the mean of its divisors is an integer number (1961083656).

Almost surely, 2^20941571001 is an apocalyptic number.

It is an amenable number.

20941571001 is a deficient number, since it is larger than the sum of its proper divisors (10435767495).

20941571001 is a wasteful number, since it uses less digits than its factorization.

20941571001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23346272.

The product of its (nonzero) digits is 2520, while the sum is 30.

The spelling of 20941571001 in words is "twenty billion, nine hundred forty-one million, five hundred seventy-one thousand, one".