1623144540559 has 2 divisors, whose sum is σ = 1623144540560. Its totient is φ = 1623144540558.

The previous prime is 1623144540509. The next prime is 1623144540569. The reversal of 1623144540559 is 9550454413261.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1623144540559 - 2¹¹ = 1623144538511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1623144540509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 811572270279 + 811572270280.

It is an arithmetic number, because the mean of its divisors is an integer number (811572270280).

Almost surely, 2^{1623144540559} is an apocalyptic number.

1623144540559 is a deficient number, since it is larger than the sum of its proper divisors (1).

1623144540559 is an equidigital number, since it uses as much as digits as its factorization.

1623144540559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592000, while the sum is 49.

The spelling of 1623144540559 in words is "one trillion, six hundred twenty-three billion, one hundred forty-four million, five hundred forty thousand, five hundred fifty-nine".