111165651053 has 2 divisors, whose sum is σ = 111165651054. Its totient is φ = 111165651052.

The previous prime is 111165650951. The next prime is 111165651067. The reversal of 111165651053 is 350156561111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110853704809 + 311946244 = 332947^2 + 17662^2 .

It is a cyclic number.

It is not a de Polignac number, because 111165651053 - 2²⁶ = 111098542189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111165651073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55582825526 + 55582825527.

It is an arithmetic number, because the mean of its divisors is an integer number (55582825527).

Almost surely, 2^111165651053 is an apocalyptic number.

It is an amenable number.

111165651053 is a deficient number, since it is larger than the sum of its proper divisors (1).

111165651053 is an equidigital number, since it uses as much as digits as its factorization.

111165651053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13500, while the sum is 35.

The spelling of 111165651053 in words is "one hundred eleven billion, one hundred sixty-five million, six hundred fifty-one thousand, fifty-three".