158953047521 has 2 divisors, whose sum is σ = 158953047522. Its totient is φ = 158953047520.

The previous prime is 158953047503. The next prime is 158953047523. The reversal of 158953047521 is 125740359851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 155165875921 + 3787171600 = 393911^2 + 61540^2 .

It is a cyclic number.

It is not a de Polignac number, because 158953047521 - 2²⁶ = 158885938657 is a prime.

Together with 158953047523, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 158953047521.

It is not a weakly prime, because it can be changed into another prime (158953047523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79476523760 + 79476523761.

It is an arithmetic number, because the mean of its divisors is an integer number (79476523761).

Almost surely, 2^158953047521 is an apocalyptic number.

It is an amenable number.

158953047521 is a deficient number, since it is larger than the sum of its proper divisors (1).

158953047521 is an equidigital number, since it uses as much as digits as its factorization.

158953047521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512000, while the sum is 50.

The spelling of 158953047521 in words is "one hundred fifty-eight billion, nine hundred fifty-three million, forty-seven thousand, five hundred twenty-one".