1163641026 has 32 divisors (see below), whose sum is σ = 2351752128. Its totient is φ = 383823360.

The previous prime is 1163641019. The next prime is 1163641033. The reversal of 1163641026 is 6201463611.

It is an interprime number because it is at equal distance from previous prime (1163641019) and next prime (1163641033).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1163640984 and 1163641002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233230 + ... + 238166.

It is an arithmetic number, because the mean of its divisors is an integer number (73492254).

Almost surely, 2^1163641026 is an apocalyptic number.

1163641026 is an abundant number, since it is smaller than the sum of its proper divisors (1188111102).

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

1163641026 is a wasteful number, since it uses less digits than its factorization.

1163641026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5346.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 1163641026 is about 34112.1829556538. The cubic root of 1163641026 is about 1051.8157625046.

The spelling of 1163641026 in words is "one billion, one hundred sixty-three million, six hundred forty-one thousand, twenty-six".