445020120515543 has 2 divisors, whose sum is σ = 445020120515544. Its totient is φ = 445020120515542.

The previous prime is 445020120515533. The next prime is 445020120515599. The reversal of 445020120515543 is 345515021020544.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 445020120515543 - 2²⁶ = 445020053406679 is a prime.

It is a super-2 number, since 2×445020120515543² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 445020120515543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445020120515533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222510060257771 + 222510060257772.

It is an arithmetic number, because the mean of its divisors is an integer number (222510060257772).

Almost surely, 2^{445020120515543} is an apocalyptic number.

445020120515543 is a deficient number, since it is larger than the sum of its proper divisors (1).

445020120515543 is an equidigital number, since it uses as much as digits as its factorization.

445020120515543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480000, while the sum is 41.

The spelling of 445020120515543 in words is "four hundred forty-five trillion, twenty billion, one hundred twenty million, five hundred fifteen thousand, five hundred forty-three".