1553553741613 has 2 divisors, whose sum is σ = 1553553741614. Its totient is φ = 1553553741612.

The previous prime is 1553553741589. The next prime is 1553553741659. The reversal of 1553553741613 is 3161473553551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1361566927044 + 191986814569 = 1166862^2 + 438163^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1553553741613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1553553741683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 776776870806 + 776776870807.

It is an arithmetic number, because the mean of its divisors is an integer number (776776870807).

Almost surely, 2^{1553553741613} is an apocalyptic number.

It is an amenable number.

1553553741613 is a deficient number, since it is larger than the sum of its proper divisors (1).

1553553741613 is an equidigital number, since it uses as much as digits as its factorization.

1553553741613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2835000, while the sum is 49.

The spelling of 1553553741613 in words is "one trillion, five hundred fifty-three billion, five hundred fifty-three million, seven hundred forty-one thousand, six hundred thirteen".