20116761620203 has 4 divisors (see below), whose sum is σ = 20129799056368. Its totient is φ = 20103724184040.

The previous prime is 20116761620147. The next prime is 20116761620233. The reversal of 20116761620203 is 30202616761102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20116761620203 is a prime.

It is a super-2 number, since 2×20116761620203² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20116761620233) 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, 6518715768 + ... + 6518718853.

It is an arithmetic number, because the mean of its divisors is an integer number (5032449764092).

Almost surely, 2^{20116761620203} is an apocalyptic number.

20116761620203 is a deficient number, since it is larger than the sum of its proper divisors (13037436165).

20116761620203 is a wasteful number, since it uses less digits than its factorization.

20116761620203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13037436164.

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 20116761620203 in words is "twenty trillion, one hundred sixteen billion, seven hundred sixty-one million, six hundred twenty thousand, two hundred three".