1163353555 has 16 divisors (see below), whose sum is σ = 1718184384. Its totient is φ = 736364160.

The previous prime is 1163353553. The next prime is 1163353559. The reversal of 1163353555 is 5553533611.

It is not a de Polignac number, because 1163353555 - 2¹ = 1163353553 is a prime.

It is a super-2 number, since 2×1163353555² = 2706782987862276050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1163353553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1277956 + ... + 1278865.

It is an arithmetic number, because the mean of its divisors is an integer number (107386524).

Almost surely, 2^1163353555 is an apocalyptic number.

1163353555 is a deficient number, since it is larger than the sum of its proper divisors (554830829).

1163353555 is a wasteful number, since it uses less digits than its factorization.

1163353555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2556846.

The product of its digits is 101250, while the sum is 37.

The square root of 1163353555 is about 34107.9690834855. The cubic root of 1163353555 is about 1051.7291403061.

The spelling of 1163353555 in words is "one billion, one hundred sixty-three million, three hundred fifty-three thousand, five hundred fifty-five".