158552661493 has 2 divisors, whose sum is σ = 158552661494. Its totient is φ = 158552661492.

The previous prime is 158552661451. The next prime is 158552661511. The reversal of 158552661493 is 394166255851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 158409572049 + 143089444 = 398007^2 + 11962^2 .

It is a cyclic number.

It is not a de Polignac number, because 158552661493 - 2¹⁷ = 158552530421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158552661413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79276330746 + 79276330747.

It is an arithmetic number, because the mean of its divisors is an integer number (79276330747).

Almost surely, 2^158552661493 is an apocalyptic number.

It is an amenable number.

158552661493 is a deficient number, since it is larger than the sum of its proper divisors (1).

158552661493 is an equidigital number, since it uses as much as digits as its factorization.

158552661493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776000, while the sum is 55.

The spelling of 158552661493 in words is "one hundred fifty-eight billion, five hundred fifty-two million, six hundred sixty-one thousand, four hundred ninety-three".