1158831415623 has 96 divisors (see below), whose sum is σ = 1911238545600. Its totient is φ = 621727002624.

The previous prime is 1158831415607. The next prime is 1158831415669. The reversal of 1158831415623 is 3265141388511.

It is not a de Polignac number, because 1158831415623 - 2⁴ = 1158831415607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1158831415123) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 25508413 + ... + 25553801.

It is an arithmetic number, because the mean of its divisors is an integer number (19908734850).

Almost surely, 2^{1158831415623} is an apocalyptic number.

1158831415623 is a deficient number, since it is larger than the sum of its proper divisors (752407129977).

1158831415623 is a wasteful number, since it uses less digits than its factorization.

1158831415623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45601 (or 45594 counting only the distinct ones).

The product of its digits is 691200, while the sum is 48.

The spelling of 1158831415623 in words is "one trillion, one hundred fifty-eight billion, eight hundred thirty-one million, four hundred fifteen thousand, six hundred twenty-three".