20964258001 has 4 divisors (see below), whose sum is σ = 21002584432. Its totient is φ = 20925931572.

The previous prime is 20964257989. The next prime is 20964258023. The reversal of 20964258001 is 10085246902.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10085246902 = 2 ⋅5042623451.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20964258001 is a prime.

It is a super-2 number, since 2×20964258001² (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 (20964258031) 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, 19162395 + ... + 19163488.

It is an arithmetic number, because the mean of its divisors is an integer number (5250646108).

Almost surely, 2^20964258001 is an apocalyptic number.

It is an amenable number.

20964258001 is a deficient number, since it is larger than the sum of its proper divisors (38326431).

20964258001 is an equidigital number, since it uses as much as digits as its factorization.

20964258001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38326430.

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 20964258001 in words is "twenty billion, nine hundred sixty-four million, two hundred fifty-eight thousand, one".