20000936671 has 2 divisors, whose sum is σ = 20000936672. Its totient is φ = 20000936670.

The previous prime is 20000936629. The next prime is 20000936699. The reversal of 20000936671 is 17663900002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20000936671 - 2²⁷ = 19866718943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20000936071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000468335 + 10000468336.

It is an arithmetic number, because the mean of its divisors is an integer number (10000468336).

Almost surely, 2^20000936671 is an apocalyptic number.

20000936671 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000936671 is an equidigital number, since it uses as much as digits as its factorization.

20000936671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 34.

The spelling of 20000936671 in words is "twenty billion, nine hundred thirty-six thousand, six hundred seventy-one".