1158206617448 has 8 divisors (see below), whose sum is σ = 2171637407730. Its totient is φ = 579103308720.

The previous prime is 1158206617439. The next prime is 1158206617453. The reversal of 1158206617448 is 8447166028511.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1155672300484 + 2534316964 = 1075022^2 + 50342^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 1158206617448.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72387913583 + ... + 72387913598.

Almost surely, 2^{1158206617448} is an apocalyptic number.

It is an amenable number.

1158206617448 is a deficient number, since it is larger than the sum of its proper divisors (1013430790282).

1158206617448 is a wasteful number, since it uses less digits than its factorization.

1158206617448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144775827187 (or 144775827183 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 53.

The spelling of 1158206617448 in words is "one trillion, one hundred fifty-eight billion, two hundred six million, six hundred seventeen thousand, four hundred forty-eight".