1163128770 has 48 divisors (see below), whose sum is σ = 3026724480. Its totient is φ = 309902112.

The previous prime is 1163128739. The next prime is 1163128789. The reversal of 1163128770 is 778213611.

1163128770 is a `hidden beast` number, since 11 + 631 + 2 + 8 + 7 + 7 + 0 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114561 + ... + 124299.

It is an arithmetic number, because the mean of its divisors is an integer number (63056760).

Almost surely, 2^1163128770 is an apocalyptic number.

1163128770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1163128770 is an abundant number, since it is smaller than the sum of its proper divisors (1863595710).

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

1163128770 is a wasteful number, since it uses less digits than its factorization.

1163128770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11079 (or 11076 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 1163128770 is about 34104.6737266317. The cubic root of 1163128770 is about 1051.6613970243.

It can be divided in two parts, 11631 and 28770, that added together give a square (40401 = 201²).

The spelling of 1163128770 in words is "one billion, one hundred sixty-three million, one hundred twenty-eight thousand, seven hundred seventy".