1155740575520 has 96 divisors (see below), whose sum is σ = 2852952399360. Its totient is φ = 441606528000.

The previous prime is 1155740575487. The next prime is 1155740575603. The reversal of 1155740575520 is 255750475511.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2554586 + ... + 2972774.

It is an arithmetic number, because the mean of its divisors is an integer number (29718254160).

Almost surely, 2^{1155740575520} is an apocalyptic number.

1155740575520 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 1155740575520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1426476199680).

1155740575520 is an abundant number, since it is smaller than the sum of its proper divisors (1697211823840).

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

1155740575520 is a wasteful number, since it uses less digits than its factorization.

1155740575520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418978 (or 418970 counting only the distinct ones).

The product of its (nonzero) digits is 1225000, while the sum is 47.

The spelling of 1155740575520 in words is "one trillion, one hundred fifty-five billion, seven hundred forty million, five hundred seventy-five thousand, five hundred twenty".