1091198329832 has 32 divisors (see below), whose sum is σ = 2203577201280. Its totient is φ = 503585208000.

The previous prime is 1091198329829. The next prime is 1091198329843. The reversal of 1091198329832 is 2389238911901.

It is a super-2 number, since 2×1091198329832² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 722957 + ... + 1644707.

It is an arithmetic number, because the mean of its divisors is an integer number (68861787540).

Almost surely, 2^{1091198329832} is an apocalyptic number.

It is an amenable number.

1091198329832 is an abundant number, since it is smaller than the sum of its proper divisors (1112378871448).

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

1091198329832 is a wasteful number, since it uses less digits than its factorization.

1091198329832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933153 (or 933149 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 56.

The spelling of 1091198329832 in words is "one trillion, ninety-one billion, one hundred ninety-eight million, three hundred twenty-nine thousand, eight hundred thirty-two".