11344167081 has 27 divisors (see below), whose sum is σ = 17749940247. Its totient is φ = 6978469680.

The previous prime is 11344167073. The next prime is 11344167089. The reversal of 11344167081 is 18076144311.

The square root of 11344167081 is 106509.

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

It is an interprime number because it is at equal distance from previous prime (11344167073) and next prime (11344167089).

It can be written as a sum of positive squares in only one way, i.e., 1678131225 + 9666035856 = 40965^2 + 98316^2 .

It is not a de Polignac number, because 11344167081 - 2³ = 11344167073 is a prime.

It is a super-2 number, since 2×11344167081² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11344167089) 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, 4152486 + ... + 4155216.

Almost surely, 2^11344167081 is an apocalyptic number.

11344167081 is the 106509-th square number.

11344167081 is the 53255-th centered octagonal number.

It is an amenable number.

11344167081 is a deficient number, since it is larger than the sum of its proper divisors (6405773166).

11344167081 is an frugal number, since it uses more digits than its factorization.

11344167081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5494 (or 2747 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

Multiplying 11344167081 by its sum of digits (36), we get a square (408390014916 = 639054²).

The spelling of 11344167081 in words is "eleven billion, three hundred forty-four million, one hundred sixty-seven thousand, eighty-one".