20468003057 has 4 divisors (see below), whose sum is σ = 20470534656. Its totient is φ = 20465471460.

The previous prime is 20468003051. The next prime is 20468003063. The reversal of 20468003057 is 75030086402.

It is a happy number.

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 an interprime number because it is at equal distance from previous prime (20468003051) and next prime (20468003063).

It is a cyclic number.

It is not a de Polignac number, because 20468003057 - 2²⁰ = 20466954481 is a prime.

It is a super-2 number, since 2×20468003057² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20468003051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1253633 + ... + 1269854.

It is an arithmetic number, because the mean of its divisors is an integer number (5117633664).

Almost surely, 2^20468003057 is an apocalyptic number.

It is an amenable number.

20468003057 is a deficient number, since it is larger than the sum of its proper divisors (2531599).

20468003057 is an equidigital number, since it uses as much as digits as its factorization.

20468003057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2531598.

The product of its (nonzero) digits is 40320, while the sum is 35.

Adding to 20468003057 its reverse (75030086402), we get a palindrome (95498089459).

The spelling of 20468003057 in words is "twenty billion, four hundred sixty-eight million, three thousand, fifty-seven".