2115532355112 has 144 divisors (see below), whose sum is σ = 6298716846240. Its totient is φ = 640975896000.

The previous prime is 2115532355081. The next prime is 2115532355129.

2115532355112 is a `hidden beast` number, since 2 + 1 + 1 + 5 + 532 + 3 + 5 + 5 + 112 = 666.

2115532355112 is nontrivially palindromic in base 10.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 79187437 + ... + 79214147.

It is an arithmetic number, because the mean of its divisors is an integer number (43741089210).

Almost surely, 2^{2115532355112} is an apocalyptic number.

2115532355112 is a gapful number since it is divisible by the number (22) 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 2115532355112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3149358423120).

2115532355112 is an abundant number, since it is smaller than the sum of its proper divisors (4183184491128).

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

2115532355112 is a wasteful number, since it uses less digits than its factorization.

2115532355112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35836 (or 35818 counting only the distinct ones).

The product of its digits is 45000, while the sum is 36.

The spelling of 2115532355112 in words is "two trillion, one hundred fifteen billion, five hundred thirty-two million, three hundred fifty-five thousand, one hundred twelve".