1045545611550 has 384 divisors, whose sum is σ = 3062413992960. Its totient is φ = 233397964800.

The previous prime is 1045545611549. The next prime is 1045545611587. The reversal of 1045545611550 is 551165455401.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 436917154 + ... + 436919546.

It is an arithmetic number, because the mean of its divisors is an integer number (7975036440).

Almost surely, 2^{1045545611550} is an apocalyptic number.

1045545611550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1045545611550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1531206996480).

1045545611550 is an abundant number, since it is smaller than the sum of its proper divisors (2016868381410).

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

1045545611550 is a wasteful number, since it uses less digits than its factorization.

1045545611550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2868 (or 2863 counting only the distinct ones).

The product of its (nonzero) digits is 300000, while the sum is 42.

The spelling of 1045545611550 in words is "one trillion, forty-five billion, five hundred forty-five million, six hundred eleven thousand, five hundred fifty".