111165525252 has 30 divisors (see below), whose sum is σ = 290608642478. Its totient is φ = 37055174976.

The previous prime is 111165525241. The next prime is 111165525257. The reversal of 111165525252 is 252525561111.

111165525252 is a `hidden beast` number, since 1 + 1 + 1 + 1 + 6 + 552 + 52 + 52 = 666.

It can be written as a sum of positive squares in only one way, i.e., 61282982916 + 49882542336 = 247554^2 + 223344^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (111165525257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 171551413 + ... + 171552060.

Almost surely, 2^111165525252 is an apocalyptic number.

111165525252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111165525252 is an abundant number, since it is smaller than the sum of its proper divisors (179443117226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111165525252 is a wasteful number, since it uses less digits than its factorization.

111165525252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343103489 (or 343103478 counting only the distinct ones).

The product of its digits is 30000, while the sum is 36.

The spelling of 111165525252 in words is "one hundred eleven billion, one hundred sixty-five million, five hundred twenty-five thousand, two hundred fifty-two".