158221852553 has 2 divisors, whose sum is σ = 158221852554. Its totient is φ = 158221852552.

The previous prime is 158221852541. The next prime is 158221852597. The reversal of 158221852553 is 355258122851.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154348408384 + 3873444169 = 392872^2 + 62237^2 .

It is an emirp because it is prime and its reverse (355258122851) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 158221852553 - 2¹² = 158221848457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 158221852498 and 158221852507.

It is not a weakly prime, because it can be changed into another prime (158221852513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79110926276 + 79110926277.

It is an arithmetic number, because the mean of its divisors is an integer number (79110926277).

Almost surely, 2^158221852553 is an apocalyptic number.

It is an amenable number.

158221852553 is a deficient number, since it is larger than the sum of its proper divisors (1).

158221852553 is an equidigital number, since it uses as much as digits as its factorization.

158221852553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960000, while the sum is 47.

The spelling of 158221852553 in words is "one hundred fifty-eight billion, two hundred twenty-one million, eight hundred fifty-two thousand, five hundred fifty-three".