111602253456 has 120 divisors (see below), whose sum is σ = 317435040000. Its totient is φ = 36597090816.

The previous prime is 111602253439. The next prime is 111602253473. The reversal of 111602253456 is 654352206111.

111602253456 is a `hidden beast` number, since 1 + 1 + 1 + 602 + 2 + 5 + 3 + 45 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (111602253439) and next prime (111602253473).

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

It is a self number, because there is not a number n which added to its sum of digits gives 111602253456.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2528505 + ... + 2572263.

It is an arithmetic number, because the mean of its divisors is an integer number (2645292000).

Almost surely, 2^111602253456 is an apocalyptic number.

111602253456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111602253456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158717520000).

111602253456 is an abundant number, since it is smaller than the sum of its proper divisors (205832786544).

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

111602253456 is a wasteful number, since it uses less digits than its factorization.

111602253456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44061 (or 44052 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

Adding to 111602253456 its reverse (654352206111), we get a palindrome (765954459567).

The spelling of 111602253456 in words is "one hundred eleven billion, six hundred two million, two hundred fifty-three thousand, four hundred fifty-six".