1163055540 has 48 divisors (see below), whose sum is σ = 3264992640. Its totient is φ = 309344640.

The previous prime is 1163055497. The next prime is 1163055577. The reversal of 1163055540 is 455503611.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1163055498 and 1163055507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1576 + ... + 48255.

It is an arithmetic number, because the mean of its divisors is an integer number (68020680).

Almost surely, 2^1163055540 is an apocalyptic number.

1163055540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1163055540 is an abundant number, since it is smaller than the sum of its proper divisors (2101937100).

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

1163055540 is a wasteful number, since it uses less digits than its factorization.

1163055540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50232 (or 50230 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 1163055540 is about 34103.6001032149. The cubic root of 1163055540 is about 1051.6393258709.

The spelling of 1163055540 in words is "one billion, one hundred sixty-three million, fifty-five thousand, five hundred forty".