20116761620253 has 4 divisors (see below), whose sum is σ = 26822348827008. Its totient is φ = 13411174413500.

The previous prime is 20116761620251. The next prime is 20116761620303. The reversal of 20116761620253 is 35202616761102.

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 20116761620253 - 2¹ = 20116761620251 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20116761620251) 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, 3352793603373 + ... + 3352793603378.

It is an arithmetic number, because the mean of its divisors is an integer number (6705587206752).

Almost surely, 2^{20116761620253} is an apocalyptic number.

It is an amenable number.

20116761620253 is a deficient number, since it is larger than the sum of its proper divisors (6705587206755).

20116761620253 is an equidigital number, since it uses as much as digits as its factorization.

20116761620253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6705587206754.

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 20116761620253 in words is "twenty trillion, one hundred sixteen billion, seven hundred sixty-one million, six hundred twenty thousand, two hundred fifty-three".