20502053336685 has 32 divisors (see below), whose sum is σ = 33155013007872. Its totient is φ = 10817278064640.

The previous prime is 20502053336683. The next prime is 20502053336711. The reversal of 20502053336685 is 58663335020502.

It is not a de Polignac number, because 20502053336685 - 2¹ = 20502053336683 is a prime.

It is a super-3 number, since 3×20502053336685³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20502053336683) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 681195 + ... + 6439575.

It is an arithmetic number, because the mean of its divisors is an integer number (1036094156496).

Almost surely, 2^{20502053336685} is an apocalyptic number.

It is an amenable number.

20502053336685 is a deficient number, since it is larger than the sum of its proper divisors (12652959671187).

20502053336685 is a wasteful number, since it uses less digits than its factorization.

20502053336685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5760933.

The product of its (nonzero) digits is 3888000, while the sum is 48.

The spelling of 20502053336685 in words is "twenty trillion, five hundred two billion, fifty-three million, three hundred thirty-six thousand, six hundred eighty-five".