270263777161 has 27 divisors (see below), whose sum is σ = 328753659591. Its totient is φ = 221514101424.

The previous prime is 270263777159. The next prime is 270263777171. The reversal of 270263777161 is 161777362072.

The square root of 270263777161 is 519869.

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., 81299687161 + 188964090000 = 285131^2 + 434700^2 .

It is not a de Polignac number, because 270263777161 - 2¹ = 270263777159 is a prime.

It is a super-3 number, since 3×270263777161³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (270263777141) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 83697295 + ... + 83700523.

Almost surely, 2^270263777161 is an apocalyptic number.

270263777161 is the 519869-th square number.

270263777161 is the 259935-th centered octagonal number.

It is an amenable number.

270263777161 is a deficient number, since it is larger than the sum of its proper divisors (58489882430).

270263777161 is an frugal number, since it uses more digits than its factorization.

270263777161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6518 (or 3259 counting only the distinct ones).

The product of its (nonzero) digits is 1037232, while the sum is 49.

Multiplying 270263777161 by its sum of digits (49), we get a square (13242925080889 = 3639083²).

270263777161 divided by its sum of digits (49) gives a square (5515587289 = 74267²).

The spelling of 270263777161 in words is "two hundred seventy billion, two hundred sixty-three million, seven hundred seventy-seven thousand, one hundred sixty-one".