111578674078152 has 84 divisors (see below), whose sum is σ = 313673797507995. Its totient is φ = 37192622467248.

The previous prime is 111578674078139. The next prime is 111578674078159. The reversal of 111578674078152 is 251870476875111.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

111578674078152 is a `hidden beast` number, since 1 + 1 + 1 + 5 + 78 + 6 + 7 + 407 + 8 + 152 = 666.

It can be written as a sum of positive squares in only one way, i.e., 55789337039076 + 55789337039076 = 7469226^2 + 7469226^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=7469226.

It is a self number, because there is not a number n which added to its sum of digits gives 111578674078152.

It is not an unprimeable number, because it can be changed into a prime (111578674078159) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 806607249 + ... + 806745567.

Almost surely, 2^{111578674078152} is an apocalyptic number.

111578674078152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111578674078152 is an abundant number, since it is smaller than the sum of its proper divisors (202095123429843).

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

111578674078152 is an frugal number, since it uses more digits than its factorization.

111578674078152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276662 (or 138324 counting only the distinct ones).

The product of its (nonzero) digits is 26342400, while the sum is 63.

The spelling of 111578674078152 in words is "one hundred eleven trillion, five hundred seventy-eight billion, six hundred seventy-four million, seventy-eight thousand, one hundred fifty-two".