20296968649853 has 24 divisors (see below), whose sum is σ = 24854818727520. Its totient is φ = 16480828697760.

The previous prime is 20296968649849. The next prime is 20296968649873. The reversal of 20296968649853 is 35894686969202.

It is not a de Polignac number, because 20296968649853 - 2² = 20296968649849 is a prime.

It is a super-3 number, since 3×20296968649853³ (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 (20296968649873) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16326950 + ... + 17526072.

It is an arithmetic number, because the mean of its divisors is an integer number (1035617446980).

Almost surely, 2^{20296968649853} is an apocalyptic number.

It is an amenable number.

20296968649853 is a deficient number, since it is larger than the sum of its proper divisors (4557850077667).

20296968649853 is a wasteful number, since it uses less digits than its factorization.

20296968649853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217337 (or 1217330 counting only the distinct ones).

The product of its (nonzero) digits is 2418647040, while the sum is 77.

The spelling of 20296968649853 in words is "twenty trillion, two hundred ninety-six billion, nine hundred sixty-eight million, six hundred forty-nine thousand, eight hundred fifty-three".