30156646253 has 2 divisors, whose sum is σ = 30156646254. Its totient is φ = 30156646252.

The previous prime is 30156646249. The next prime is 30156646279. The reversal of 30156646253 is 35264665103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27419054569 + 2737591684 = 165587^2 + 52322^2 .

It is a cyclic number.

It is not a de Polignac number, because 30156646253 - 2² = 30156646249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30156646253.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30156646153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15078323126 + 15078323127.

It is an arithmetic number, because the mean of its divisors is an integer number (15078323127).

Almost surely, 2^30156646253 is an apocalyptic number.

It is an amenable number.

30156646253 is a deficient number, since it is larger than the sum of its proper divisors (1).

30156646253 is an equidigital number, since it uses as much as digits as its factorization.

30156646253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 388800, while the sum is 41.

The spelling of 30156646253 in words is "thirty billion, one hundred fifty-six million, six hundred forty-six thousand, two hundred fifty-three".