1554355531343 has 2 divisors, whose sum is σ = 1554355531344. Its totient is φ = 1554355531342.

The previous prime is 1554355531319. The next prime is 1554355531349. The reversal of 1554355531343 is 3431355534551.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1554355531343 - 2²² = 1554351337039 is a prime.

It is a super-2 number, since 2×1554355531343² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1554355531349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 777177765671 + 777177765672.

It is an arithmetic number, because the mean of its divisors is an integer number (777177765672).

Almost surely, 2^{1554355531343} is an apocalyptic number.

1554355531343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1554355531343 is an equidigital number, since it uses as much as digits as its factorization.

1554355531343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4050000, while the sum is 47.

The spelling of 1554355531343 in words is "one trillion, five hundred fifty-four billion, three hundred fifty-five million, five hundred thirty-one thousand, three hundred forty-three".