1158238811650 has 48 divisors (see below), whose sum is σ = 2162411596800. Its totient is φ = 461558664000.

The previous prime is 1158238811621. The next prime is 1158238811663. The reversal of 1158238811650 is 561188328511.

It is a junction number, because it is equal to n+sod(n) for n = 1158238811594 and 1158238811603.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20056117 + ... + 20113783.

It is an arithmetic number, because the mean of its divisors is an integer number (45050241600).

Almost surely, 2^{1158238811650} is an apocalyptic number.

1158238811650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1158238811650 is a deficient number, since it is larger than the sum of its proper divisors (1004172785150).

1158238811650 is a wasteful number, since it uses less digits than its factorization.

1158238811650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59179 (or 59174 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 49.

The spelling of 1158238811650 in words is "one trillion, one hundred fifty-eight billion, two hundred thirty-eight million, eight hundred eleven thousand, six hundred fifty".