1159981801074 has 48 divisors (see below), whose sum is σ = 2515975314840. Its totient is φ = 386248262400.

The previous prime is 1159981801067. The next prime is 1159981801127. The reversal of 1159981801074 is 4701081899511.

It can be written as a sum of positive squares in 4 ways, for example, as 1123038270225 + 36943530849 = 1059735^2 + 192207^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1159981801074.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144830782 + ... + 144838790.

Almost surely, 2^{1159981801074} is an apocalyptic number.

1159981801074 is an abundant number, since it is smaller than the sum of its proper divisors (1355993513766).

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

1159981801074 is a wasteful number, since it uses less digits than its factorization.

1159981801074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15595 (or 15592 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 54.

The spelling of 1159981801074 in words is "one trillion, one hundred fifty-nine billion, nine hundred eighty-one million, eight hundred one thousand, seventy-four".