1127161580 has 48 divisors (see below), whose sum is σ = 2451423744. Its totient is φ = 435046080.

The previous prime is 1127161571. The next prime is 1127161583. The reversal of 1127161580 is 851617211.

It is not an unprimeable number, because it can be changed into a prime (1127161583) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 63485 + ... + 79275.

It is an arithmetic number, because the mean of its divisors is an integer number (51071328).

Almost surely, 2^1127161580 is an apocalyptic number.

1127161580 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 1127161580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1225711872).

1127161580 is an abundant number, since it is smaller than the sum of its proper divisors (1324262164).

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

1127161580 is a wasteful number, since it uses less digits than its factorization.

1127161580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15926 (or 15924 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 32.

The square root of 1127161580 is about 33573.2271311532. The cubic root of 1127161580 is about 1040.7075990732.

Adding to 1127161580 its reverse (851617211), we get a palindrome (1978778791).

The spelling of 1127161580 in words is "one billion, one hundred twenty-seven million, one hundred sixty-one thousand, five hundred eighty".