1155245401530 has 192 divisors, whose sum is σ = 3366454006656. Its totient is φ = 272393280000.

The previous prime is 1155245401523. The next prime is 1155245401543. The reversal of 1155245401530 is 351045425511.

1155245401530 is a `hidden beast` number, since 1 + 1 + 5 + 5 + 245 + 401 + 5 + 3 + 0 = 666.

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, 204429205 + ... + 204434855.

It is an arithmetic number, because the mean of its divisors is an integer number (17533614618).

Almost surely, 2^{1155245401530} is an apocalyptic number.

1155245401530 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 1155245401530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1683227003328).

1155245401530 is an abundant number, since it is smaller than the sum of its proper divisors (2211208605126).

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

1155245401530 is a wasteful number, since it uses less digits than its factorization.

1155245401530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11293 (or 11290 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

The spelling of 1155245401530 in words is "one trillion, one hundred fifty-five billion, two hundred forty-five million, four hundred one thousand, five hundred thirty".