22456471157 has 2 divisors, whose sum is σ = 22456471158. Its totient is φ = 22456471156.

The previous prime is 22456471123. The next prime is 22456471187. The reversal of 22456471157 is 75117465422.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18997384561 + 3459086596 = 137831^2 + 58814^2 .

It is a cyclic number.

It is not a de Polignac number, because 22456471157 - 2⁸ = 22456470901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22456471187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11228235578 + 11228235579.

It is an arithmetic number, because the mean of its divisors is an integer number (11228235579).

Almost surely, 2^22456471157 is an apocalyptic number.

It is an amenable number.

22456471157 is a deficient number, since it is larger than the sum of its proper divisors (1).

22456471157 is an equidigital number, since it uses as much as digits as its factorization.

22456471157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 470400, while the sum is 44.

The spelling of 22456471157 in words is "twenty-two billion, four hundred fifty-six million, four hundred seventy-one thousand, one hundred fifty-seven".