1551444115343 has 2 divisors, whose sum is σ = 1551444115344. Its totient is φ = 1551444115342.

The previous prime is 1551444115321. The next prime is 1551444115411. The reversal of 1551444115343 is 3435114441551.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1551444115343 - 2³² = 1547149148047 is a prime.

It is a super-3 number, since 3×1551444115343³ (a number of 38 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1551444115343.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1550444115343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 775722057671 + 775722057672.

It is an arithmetic number, because the mean of its divisors is an integer number (775722057672).

Almost surely, 2^{1551444115343} is an apocalyptic number.

1551444115343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1551444115343 is an equidigital number, since it uses as much as digits as its factorization.

1551444115343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288000, while the sum is 41.

Adding to 1551444115343 its reverse (3435114441551), we get a palindrome (4986558556894).

The spelling of 1551444115343 in words is "one trillion, five hundred fifty-one billion, four hundred forty-four million, one hundred fifteen thousand, three hundred forty-three".