355109605073 has 2 divisors, whose sum is σ = 355109605074. Its totient is φ = 355109605072.

The previous prime is 355109605069. The next prime is 355109605139. The reversal of 355109605073 is 370506901553.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 180746570449 + 174363034624 = 425143^2 + 417568^2 .

It is a cyclic number.

It is not a de Polignac number, because 355109605073 - 2² = 355109605069 is a prime.

It is a super-2 number, since 2×355109605073² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (355109605013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177554802536 + 177554802537.

It is an arithmetic number, because the mean of its divisors is an integer number (177554802537).

Almost surely, 2^355109605073 is an apocalyptic number.

It is an amenable number.

355109605073 is a deficient number, since it is larger than the sum of its proper divisors (1).

355109605073 is an equidigital number, since it uses as much as digits as its factorization.

355109605073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 425250, while the sum is 44.

The spelling of 355109605073 in words is "three hundred fifty-five billion, one hundred nine million, six hundred five thousand, seventy-three".