1155358080 has 768 divisors, whose sum is σ = 4811788800. Its totient is φ = 262766592.

The previous prime is 1155358067. The next prime is 1155358081. The reversal of 1155358080 is 808535511.

1155358080 is a `hidden beast` number, since 115 + 535 + 8 + 0 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155358081) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 50232949 + ... + 50232971.

It is an arithmetic number, because the mean of its divisors is an integer number (6265350).

Almost surely, 2^1155358080 is an apocalyptic number.

1155358080 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 1155358080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2405894400).

1155358080 is an abundant number, since it is smaller than the sum of its proper divisors (3656430720).

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

1155358080 is a wasteful number, since it uses less digits than its factorization.

1155358080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 36.

The square root of 1155358080 is about 33990.5586891419. The cubic root of 1155358080 is about 1049.3141643705.

The spelling of 1155358080 in words is "one billion, one hundred fifty-five million, three hundred fifty-eight thousand, eighty".