20455532151143 has 2 divisors, whose sum is σ = 20455532151144. Its totient is φ = 20455532151142.

The previous prime is 20455532151113. The next prime is 20455532151233. The reversal of 20455532151143 is 34115123555402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20455532151143 - 2¹² = 20455532147047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20455532151143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20455532151113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10227766075571 + 10227766075572.

It is an arithmetic number, because the mean of its divisors is an integer number (10227766075572).

Almost surely, 2^{20455532151143} is an apocalyptic number.

20455532151143 is a deficient number, since it is larger than the sum of its proper divisors (1).

20455532151143 is an equidigital number, since it uses as much as digits as its factorization.

20455532151143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360000, while the sum is 41.

The spelling of 20455532151143 in words is "twenty trillion, four hundred fifty-five billion, five hundred thirty-two million, one hundred fifty-one thousand, one hundred forty-three".