13345803557 has 2 divisors, whose sum is σ = 13345803558. Its totient is φ = 13345803556.

The previous prime is 13345803533. The next prime is 13345803587. The reversal of 13345803557 is 75530854331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11617821796 + 1727981761 = 107786^2 + 41569^2 .

It is a cyclic number.

It is not a de Polignac number, because 13345803557 - 2¹⁴ = 13345787173 is a prime.

It is a super-2 number, since 2×13345803557² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13345803517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6672901778 + 6672901779.

It is an arithmetic number, because the mean of its divisors is an integer number (6672901779).

Almost surely, 2^13345803557 is an apocalyptic number.

It is an amenable number.

13345803557 is a deficient number, since it is larger than the sum of its proper divisors (1).

13345803557 is an equidigital number, since it uses as much as digits as its factorization.

13345803557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756000, while the sum is 44.

The spelling of 13345803557 in words is "thirteen billion, three hundred forty-five million, eight hundred three thousand, five hundred fifty-seven".