11359387196161 has 9 divisors (see below), whose sum is σ = 12066953146249. Its totient is φ = 10691134023424.

The previous prime is 11359387196153. The next prime is 11359387196167. The reversal of 11359387196161 is 16169178395311.

The square root of 11359387196161 is 3370369.

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

It can be written as a sum of positive squares in 4 ways, for example, as 797147194561 + 10562240001600 = 892831^2 + 3249960^2 .

It is not a de Polignac number, because 11359387196161 - 2³ = 11359387196153 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11359387196161.

It is not an unprimeable number, because it can be changed into a prime (11359387196167) 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, 57197145 + ... + 57395401.

Almost surely, 2^{11359387196161} is an apocalyptic number.

11359387196161 is the 3370369-th square number.

11359387196161 is the 1685185-th centered octagonal number.

It is an amenable number.

11359387196161 is a deficient number, since it is larger than the sum of its proper divisors (707565950088).

11359387196161 is an frugal number, since it uses more digits than its factorization.

11359387196161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396548 (or 198274 counting only the distinct ones).

The product of its digits is 7348320, while the sum is 61.

The spelling of 11359387196161 in words is "eleven trillion, three hundred fifty-nine billion, three hundred eighty-seven million, one hundred ninety-six thousand, one hundred sixty-one".