1163380520 has 16 divisors (see below), whose sum is σ = 2617606260. Its totient is φ = 465352192.

The previous prime is 1163380513. The next prime is 1163380541. The reversal of 1163380520 is 250833611.

It can be written as a sum of positive squares in 2 ways, for example, as 1048075876 + 115304644 = 32374^2 + 10738^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14542217 + ... + 14542296.

Almost surely, 2^1163380520 is an apocalyptic number.

1163380520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1163380520 is an abundant number, since it is smaller than the sum of its proper divisors (1454225740).

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

1163380520 is a wasteful number, since it uses less digits than its factorization.

1163380520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29084524 (or 29084520 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1163380520 is about 34108.3643700486. The cubic root of 1163380520 is about 1051.7372661411.

The spelling of 1163380520 in words is "one billion, one hundred sixty-three million, three hundred eighty thousand, five hundred twenty".