20002539535 has 8 divisors (see below), whose sum is σ = 26185142736. Its totient is φ = 14547301440.

The previous prime is 20002539451. The next prime is 20002539563. The reversal of 20002539535 is 53593520002.

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

It is not a de Polignac number, because 20002539535 - 2¹⁷ = 20002408463 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20002539535.

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, 181841214 + ... + 181841323.

It is an arithmetic number, because the mean of its divisors is an integer number (3273142842).

Almost surely, 2^20002539535 is an apocalyptic number.

20002539535 is a deficient number, since it is larger than the sum of its proper divisors (6182603201).

20002539535 is a wasteful number, since it uses less digits than its factorization.

20002539535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363682553.

The product of its (nonzero) digits is 40500, while the sum is 34.

The spelling of 20002539535 in words is "twenty billion, two million, five hundred thirty-nine thousand, five hundred thirty-five".