355293340081 has 2 divisors, whose sum is σ = 355293340082. Its totient is φ = 355293340080.

The previous prime is 355293340069. The next prime is 355293340099. The reversal of 355293340081 is 180043392553.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 326115234225 + 29178105856 = 571065^2 + 170816^2 .

It is a cyclic number.

It is not a de Polignac number, because 355293340081 - 2⁷ = 355293339953 is a prime.

It is a super-2 number, since 2×355293340081² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (355293347081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177646670040 + 177646670041.

It is an arithmetic number, because the mean of its divisors is an integer number (177646670041).

Almost surely, 2^355293340081 is an apocalyptic number.

It is an amenable number.

355293340081 is a deficient number, since it is larger than the sum of its proper divisors (1).

355293340081 is an equidigital number, since it uses as much as digits as its factorization.

355293340081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 355293340081 in words is "three hundred fifty-five billion, two hundred ninety-three million, three hundred forty thousand, eighty-one".