30656157157 has 2 divisors, whose sum is σ = 30656157158. Its totient is φ = 30656157156.

The previous prime is 30656157151. The next prime is 30656157163. The reversal of 30656157157 is 75175165603.

It is a balanced prime because it is at equal distance from previous prime (30656157151) and next prime (30656157163).

It can be written as a sum of positive squares in only one way, i.e., 30232167876 + 423989281 = 173874^2 + 20591^2 .

It is a cyclic number.

It is not a de Polignac number, because 30656157157 - 2²⁷ = 30521939429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30656157151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15328078578 + 15328078579.

It is an arithmetic number, because the mean of its divisors is an integer number (15328078579).

Almost surely, 2^30656157157 is an apocalyptic number.

It is an amenable number.

30656157157 is a deficient number, since it is larger than the sum of its proper divisors (1).

30656157157 is an equidigital number, since it uses as much as digits as its factorization.

30656157157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 661500, while the sum is 46.

The spelling of 30656157157 in words is "thirty billion, six hundred fifty-six million, one hundred fifty-seven thousand, one hundred fifty-seven".