159280011801 has 9 divisors (see below), whose sum is σ = 230072857599. Its totient is φ = 106185876336.

The previous prime is 159280011703. The next prime is 159280011809. The reversal of 159280011801 is 108110082951.

The square root of 159280011801 is 399099.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2007488025 + 157272523776 = 44805^2 + 396576^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 159280011801 - 2¹⁹ = 159279487513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (159280011809) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1130781 + ... + 1263813.

Almost surely, 2^159280011801 is an apocalyptic number.

159280011801 is the 399099-th square number.

159280011801 is the 199550-th centered octagonal number.

It is an amenable number.

159280011801 is a deficient number, since it is larger than the sum of its proper divisors (70792845798).

159280011801 is an frugal number, since it uses more digits than its factorization.

159280011801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266072 (or 133036 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 36.

Multiplying 159280011801 by its sum of digits (36), we get a square (5734080424836 = 2394594²).

The spelling of 159280011801 in words is "one hundred fifty-nine billion, two hundred eighty million, eleven thousand, eight hundred one".