1125668491232 has 192 divisors, whose sum is σ = 2346047069184. Its totient is φ = 531116974080.

The previous prime is 1125668491223. The next prime is 1125668491307. The reversal of 1125668491232 is 2321948665211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1548374453 + ... + 1548375179.

It is an arithmetic number, because the mean of its divisors is an integer number (12218995152).

Almost surely, 2^{1125668491232} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1125668491232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1173023534592).

1125668491232 is an abundant number, since it is smaller than the sum of its proper divisors (1220378577952).

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

1125668491232 is a wasteful number, since it uses less digits than its factorization.

1125668491232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121 (or 1113 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 50.

The spelling of 1125668491232 in words is "one trillion, one hundred twenty-five billion, six hundred sixty-eight million, four hundred ninety-one thousand, two hundred thirty-two".