20036651143 has 2 divisors, whose sum is σ = 20036651144. Its totient is φ = 20036651142.

The previous prime is 20036651123. The next prime is 20036651179. The reversal of 20036651143 is 34115663002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20036651143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20036651123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10018325571 + 10018325572.

It is an arithmetic number, because the mean of its divisors is an integer number (10018325572).

Almost surely, 2^20036651143 is an apocalyptic number.

20036651143 is a deficient number, since it is larger than the sum of its proper divisors (1).

20036651143 is an equidigital number, since it uses as much as digits as its factorization.

20036651143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 31.

The spelling of 20036651143 in words is "twenty billion, thirty-six million, six hundred fifty-one thousand, one hundred forty-three".