30506164357 has 2 divisors, whose sum is σ = 30506164358. Its totient is φ = 30506164356.

The previous prime is 30506164319. The next prime is 30506164393. The reversal of 30506164357 is 75346160503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20382987361 + 10123176996 = 142769^2 + 100614^2 .

It is an emirp because it is prime and its reverse (75346160503) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30506164357 - 2¹⁵ = 30506131589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30506164397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15253082178 + 15253082179.

It is an arithmetic number, because the mean of its divisors is an integer number (15253082179).

Almost surely, 2^30506164357 is an apocalyptic number.

It is an amenable number.

30506164357 is a deficient number, since it is larger than the sum of its proper divisors (1).

30506164357 is an equidigital number, since it uses as much as digits as its factorization.

30506164357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 226800, while the sum is 40.

The spelling of 30506164357 in words is "thirty billion, five hundred six million, one hundred sixty-four thousand, three hundred fifty-seven".