159267547561 has 2 divisors, whose sum is σ = 159267547562. Its totient is φ = 159267547560.

The previous prime is 159267547531. The next prime is 159267547603. The reversal of 159267547561 is 165745762951.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89906424336 + 69361123225 = 299844^2 + 263365^2 .

It is a cyclic number.

It is not a de Polignac number, because 159267547561 - 2¹⁵ = 159267514793 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 159267547496 and 159267547505.

It is not a weakly prime, because it can be changed into another prime (159267547531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79633773780 + 79633773781.

It is an arithmetic number, because the mean of its divisors is an integer number (79633773781).

Almost surely, 2^159267547561 is an apocalyptic number.

It is an amenable number.

159267547561 is a deficient number, since it is larger than the sum of its proper divisors (1).

159267547561 is an equidigital number, since it uses as much as digits as its factorization.

159267547561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15876000, while the sum is 58.

The spelling of 159267547561 in words is "one hundred fifty-nine billion, two hundred sixty-seven million, five hundred forty-seven thousand, five hundred sixty-one".