30357855161 has 2 divisors, whose sum is σ = 30357855162. Its totient is φ = 30357855160.

The previous prime is 30357855149. The next prime is 30357855193. The reversal of 30357855161 is 16155875303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25363747600 + 4994107561 = 159260^2 + 70669^2 .

It is a cyclic number.

It is not a de Polignac number, because 30357855161 - 2¹⁸ = 30357593017 is a prime.

It is a super-3 number, since 3×30357855161³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (30357855461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15178927580 + 15178927581.

It is an arithmetic number, because the mean of its divisors is an integer number (15178927581).

Almost surely, 2^30357855161 is an apocalyptic number.

It is an amenable number.

30357855161 is a deficient number, since it is larger than the sum of its proper divisors (1).

30357855161 is an equidigital number, since it uses as much as digits as its factorization.

30357855161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378000, while the sum is 44.

The spelling of 30357855161 in words is "thirty billion, three hundred fifty-seven million, eight hundred fifty-five thousand, one hundred sixty-one".