1121611545600 has 1584 divisors, whose sum is σ = 4742595454464. Its totient is φ = 227642572800.

The previous prime is 1121611545599. The next prime is 1121611545653. The reversal of 1121611545600 is 65451161211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 6716236717 + ... + 6716236883.

Almost surely, 2^{1121611545600} is an apocalyptic number.

1121611545600 is a gapful number since it is divisible by the number (10) 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 1121611545600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2371297727232).

1121611545600 is an abundant number, since it is smaller than the sum of its proper divisors (3620983908864).

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

1121611545600 is a wasteful number, since it uses less digits than its factorization.

1121611545600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 33.

The spelling of 1121611545600 in words is "one trillion, one hundred twenty-one billion, six hundred eleven million, five hundred forty-five thousand, six hundred".