1155517502443 has 2 divisors, whose sum is σ = 1155517502444. Its totient is φ = 1155517502442.

The previous prime is 1155517502411. The next prime is 1155517502501. The reversal of 1155517502443 is 3442057155511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1155517502443 - 2⁵ = 1155517502411 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1155517502443.

It is not a weakly prime, because it can be changed into another prime (1155517508443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577758751221 + 577758751222.

It is an arithmetic number, because the mean of its divisors is an integer number (577758751222).

Almost surely, 2^{1155517502443} is an apocalyptic number.

1155517502443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155517502443 is an equidigital number, since it uses as much as digits as its factorization.

1155517502443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420000, while the sum is 43.

The spelling of 1155517502443 in words is "one trillion, one hundred fifty-five billion, five hundred seventeen million, five hundred two thousand, four hundred forty-three".