11140602161 has 16 divisors (see below), whose sum is σ = 12523400064. Its totient is φ = 9833222784.

The previous prime is 11140602133. The next prime is 11140602167. The reversal of 11140602161 is 16120604111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11140602161 - 2¹⁰ = 11140601137 is a prime.

It is a super-2 number, since 2×11140602161² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11140602167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1472390 + ... + 1479936.

It is an arithmetic number, because the mean of its divisors is an integer number (782712504).

Almost surely, 2^11140602161 is an apocalyptic number.

It is an amenable number.

11140602161 is a deficient number, since it is larger than the sum of its proper divisors (1382797903).

11140602161 is a wasteful number, since it uses less digits than its factorization.

11140602161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12520.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 11140602161 in words is "eleven billion, one hundred forty million, six hundred two thousand, one hundred sixty-one".