20679452852501 has 4 divisors (see below), whose sum is σ = 20970712751904. Its totient is φ = 20388192953100.

The previous prime is 20679452852473. The next prime is 20679452852507. The reversal of 20679452852501 is 10525825497602.

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 20679452852501 - 2⁶ = 20679452852437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20679452852507) 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, 145629949595 + ... + 145629949736.

It is an arithmetic number, because the mean of its divisors is an integer number (5242678187976).

Almost surely, 2^{20679452852501} is an apocalyptic number.

It is an amenable number.

20679452852501 is a deficient number, since it is larger than the sum of its proper divisors (291259899403).

20679452852501 is an equidigital number, since it uses as much as digits as its factorization.

20679452852501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291259899402.

The product of its (nonzero) digits is 12096000, while the sum is 56.

The spelling of 20679452852501 in words is "twenty trillion, six hundred seventy-nine billion, four hundred fifty-two million, eight hundred fifty-two thousand, five hundred one".