1158223659263 has 32 divisors (see below), whose sum is σ = 1303102080000. Its totient is φ = 1020312256000.

The previous prime is 1158223659251. The next prime is 1158223659287. The reversal of 1158223659263 is 3629563228511.

It is a Cunningham number, because it is equal to 1076208²-1.

It is a cyclic number.

It is not a de Polignac number, because 1158223659263 - 2⁴ = 1158223659247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1158223655263) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44111363 + ... + 44137611.

It is an arithmetic number, because the mean of its divisors is an integer number (40721940000).

Almost surely, 2^{1158223659263} is an apocalyptic number.

1158223659263 is a deficient number, since it is larger than the sum of its proper divisors (144878420737).

1158223659263 is a wasteful number, since it uses less digits than its factorization.

1158223659263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26959.

The product of its digits is 4665600, while the sum is 53.

The spelling of 1158223659263 in words is "one trillion, one hundred fifty-eight billion, two hundred twenty-three million, six hundred fifty-nine thousand, two hundred sixty-three".