20075657001 has 4 divisors (see below), whose sum is σ = 26767542672. Its totient is φ = 13383771332.

The previous prime is 20075656999. The next prime is 20075657023. The reversal of 20075657001 is 10075657002.

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 20075657001 - 2¹ = 20075656999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20075657081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3345942831 + ... + 3345942836.

It is an arithmetic number, because the mean of its divisors is an integer number (6691885668).

Almost surely, 2^20075657001 is an apocalyptic number.

It is an amenable number.

20075657001 is a deficient number, since it is larger than the sum of its proper divisors (6691885671).

20075657001 is an equidigital number, since it uses as much as digits as its factorization.

20075657001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6691885670.

The product of its (nonzero) digits is 14700, while the sum is 33.

Subtracting from 20075657001 its reverse (10075657002), we obtain a palindrome (9999999999).

The spelling of 20075657001 in words is "twenty billion, seventy-five million, six hundred fifty-seven thousand, one".