1171564199064 has 768 divisors, whose sum is σ = 4030542996480. Its totient is φ = 311803914240.

The previous prime is 1171564199053. The next prime is 1171564199087. The reversal of 1171564199064 is 4609914651711.

1171564199064 is a `hidden beast` number, since 1 + 1 + 7 + 1 + 564 + 19 + 9 + 0 + 64 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 1171564199064.

It is a congruent number.

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 191 ways as a sum of consecutive naturals, for example, 1147466874 + ... + 1147467894.

It is an arithmetic number, because the mean of its divisors is an integer number (5248102860).

Almost surely, 2^{1171564199064} is an apocalyptic number.

1171564199064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1171564199064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2015271498240).

1171564199064 is an abundant number, since it is smaller than the sum of its proper divisors (2858978797416).

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

1171564199064 is a wasteful number, since it uses less digits than its factorization.

1171564199064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182 (or 1166 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 54.

The spelling of 1171564199064 in words is "one trillion, one hundred seventy-one billion, five hundred sixty-four million, one hundred ninety-nine thousand, sixty-four".