20239041085 has 8 divisors (see below), whose sum is σ = 24291022680. Its totient is φ = 16188450624.

The previous prime is 20239041079. The next prime is 20239041103. The reversal of 20239041085 is 58014093202.

It can be written as a sum of positive squares in 4 ways, for example, as 3694084 + 20235347001 = 1922^2 + 142251^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20239041085 - 2¹⁹ = 20238516797 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20239041085.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 315502 + ... + 374191.

It is an arithmetic number, because the mean of its divisors is an integer number (3036377835).

Almost surely, 2^20239041085 is an apocalyptic number.

It is an amenable number.

20239041085 is a deficient number, since it is larger than the sum of its proper divisors (4051981595).

20239041085 is an equidigital number, since it uses as much as digits as its factorization.

20239041085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695567.

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 20239041085 in words is "twenty billion, two hundred thirty-nine million, forty-one thousand, eighty-five".