1155346480553 has 2 divisors, whose sum is σ = 1155346480554. Its totient is φ = 1155346480552.

The previous prime is 1155346480499. The next prime is 1155346480597. The reversal of 1155346480553 is 3550846435511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1088499929344 + 66846551209 = 1043312^2 + 258547^2 .

It is a cyclic number.

It is not a de Polignac number, because 1155346480553 - 2⁸ = 1155346480297 is a prime.

It is not a weakly prime, because it can be changed into another prime (1155346410553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577673240276 + 577673240277.

It is an arithmetic number, because the mean of its divisors is an integer number (577673240277).

Almost surely, 2^{1155346480553} is an apocalyptic number.

It is an amenable number.

1155346480553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155346480553 is an equidigital number, since it uses as much as digits as its factorization.

1155346480553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320000, while the sum is 50.

The spelling of 1155346480553 in words is "one trillion, one hundred fifty-five billion, three hundred forty-six million, four hundred eighty thousand, five hundred fifty-three".