1158247822020 has 24 divisors (see below), whose sum is σ = 3243093901824. Its totient is φ = 308866085856.

The previous prime is 1158247821971. The next prime is 1158247822021. The reversal of 1158247822020 is 202287428511.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1158247822021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9652065124 + ... + 9652065243.

It is an arithmetic number, because the mean of its divisors is an integer number (135128912576).

Almost surely, 2^{1158247822020} is an apocalyptic number.

1158247822020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1158247822020 is an abundant number, since it is smaller than the sum of its proper divisors (2084846079804).

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

1158247822020 is a wasteful number, since it uses less digits than its factorization.

1158247822020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19304130379 (or 19304130377 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 42.

The spelling of 1158247822020 in words is "one trillion, one hundred fifty-eight billion, two hundred forty-seven million, eight hundred twenty-two thousand, twenty".