1151744999720 has 256 divisors, whose sum is σ = 3213665280000. Its totient is φ = 362710738944.

The previous prime is 1151744999707. The next prime is 1151744999723. The reversal of 1151744999720 is 279994471511.

It is a self number, because there is not a number n which added to its sum of digits gives 1151744999720.

It is not an unprimeable number, because it can be changed into a prime (1151744999723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26732756 + ... + 26775804.

It is an arithmetic number, because the mean of its divisors is an integer number (12553380000).

Almost surely, 2^{1151744999720} is an apocalyptic number.

1151744999720 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 1151744999720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1606832640000).

1151744999720 is an abundant number, since it is smaller than the sum of its proper divisors (2061920280280).

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

1151744999720 is a wasteful number, since it uses less digits than its factorization.

1151744999720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43240 (or 43236 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 59.

The spelling of 1151744999720 in words is "one trillion, one hundred fifty-one billion, seven hundred forty-four million, nine hundred ninety-nine thousand, seven hundred twenty".