1115611362544 has 80 divisors (see below), whose sum is σ = 2486105934592. Its totient is φ = 475058110464.

The previous prime is 1115611362497. The next prime is 1115611362563. The reversal of 1115611362544 is 4452631165111.

It is a junction number, because it is equal to n+sod(n) for n = 1115611362497 and 1115611362506.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 103743472 + ... + 103754224.

Almost surely, 2^{1115611362544} is an apocalyptic number.

1115611362544 is a gapful number since it is divisible by the number (14) 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 1115611362544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1243052967296).

1115611362544 is an abundant number, since it is smaller than the sum of its proper divisors (1370494572048).

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

1115611362544 is a wasteful number, since it uses less digits than its factorization.

1115611362544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16614 (or 16608 counting only the distinct ones).

The product of its digits is 86400, while the sum is 40.

The spelling of 1115611362544 in words is "one trillion, one hundred fifteen billion, six hundred eleven million, three hundred sixty-two thousand, five hundred forty-four".