111344625161 has 48 divisors (see below), whose sum is σ = 149726428992. Its totient is φ = 81594777600.

The previous prime is 111344625143. The next prime is 111344625179. The reversal of 111344625161 is 161526443111.

It is an interprime number because it is at equal distance from previous prime (111344625143) and next prime (111344625179).

It is not a de Polignac number, because 111344625161 - 2¹⁰ = 111344624137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111344625181) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14024585 + ... + 14032521.

It is an arithmetic number, because the mean of its divisors is an integer number (3119300604).

Almost surely, 2^111344625161 is an apocalyptic number.

111344625161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111344625161 is a deficient number, since it is larger than the sum of its proper divisors (38381803831).

111344625161 is a wasteful number, since it uses less digits than its factorization.

111344625161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9510 (or 9503 counting only the distinct ones).

The product of its digits is 17280, while the sum is 35.

The spelling of 111344625161 in words is "one hundred eleven billion, three hundred forty-four million, six hundred twenty-five thousand, one hundred sixty-one".