157896668227 has 2 divisors, whose sum is σ = 157896668228. Its totient is φ = 157896668226.

The previous prime is 157896668201. The next prime is 157896668269. The reversal of 157896668227 is 722866698751.

It is a weak prime.

It is an emirp because it is prime and its reverse (722866698751) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157896668227 is a prime.

It is a super-2 number, since 2×157896668227² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (157896663227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78948334113 + 78948334114.

It is an arithmetic number, because the mean of its divisors is an integer number (78948334114).

Almost surely, 2^157896668227 is an apocalyptic number.

157896668227 is a deficient number, since it is larger than the sum of its proper divisors (1).

157896668227 is an equidigital number, since it uses as much as digits as its factorization.

157896668227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 121927680, while the sum is 67.

The spelling of 157896668227 in words is "one hundred fifty-seven billion, eight hundred ninety-six million, six hundred sixty-eight thousand, two hundred twenty-seven".