1151491801200 has 480 divisors, whose sum is σ = 4056865344000. Its totient is φ = 277439385600.

The previous prime is 1151491801133. The next prime is 1151491801211. The reversal of 1151491801200 is 21081941511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 412571805 + ... + 412574595.

It is an arithmetic number, because the mean of its divisors is an integer number (8451802800).

Almost surely, 2^{1151491801200} is an apocalyptic number.

1151491801200 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 1151491801200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2028432672000).

1151491801200 is an abundant number, since it is smaller than the sum of its proper divisors (2905373542800).

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

1151491801200 is a wasteful number, since it uses less digits than its factorization.

1151491801200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3377 (or 3366 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 33.

The spelling of 1151491801200 in words is "one trillion, one hundred fifty-one billion, four hundred ninety-one million, eight hundred one thousand, two hundred".