1171098989506 has 8 divisors (see below), whose sum is σ = 1773703324224. Its totient is φ = 579864548100.

The previous prime is 1171098989491. The next prime is 1171098989527. The reversal of 1171098989506 is 6059898901711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2842473070 + ... + 2842473481.

It is an arithmetic number, because the mean of its divisors is an integer number (221712915528).

Almost surely, 2^{1171098989506} is an apocalyptic number.

1171098989506 is a deficient number, since it is larger than the sum of its proper divisors (602604334718).

1171098989506 is a wasteful number, since it uses less digits than its factorization.

1171098989506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5684946656.

The product of its (nonzero) digits is 9797760, while the sum is 64.

The spelling of 1171098989506 in words is "one trillion, one hundred seventy-one billion, ninety-eight million, nine hundred eighty-nine thousand, five hundred six".