1553580605441 has 2 divisors, whose sum is σ = 1553580605442. Its totient is φ = 1553580605440.

The previous prime is 1553580605419. The next prime is 1553580605569. The reversal of 1553580605441 is 1445060853551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1529835028225 + 23745577216 = 1236865^2 + 154096^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1553580605441 is a prime.

It is a super-2 number, since 2×1553580605441² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1553580605341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 776790302720 + 776790302721.

It is an arithmetic number, because the mean of its divisors is an integer number (776790302721).

Almost surely, 2^{1553580605441} is an apocalyptic number.

It is an amenable number.

1553580605441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1553580605441 is an equidigital number, since it uses as much as digits as its factorization.

1553580605441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440000, while the sum is 47.

The spelling of 1553580605441 in words is "one trillion, five hundred fifty-three billion, five hundred eighty million, six hundred five thousand, four hundred forty-one".