1164186919950 has 192 divisors, whose sum is σ = 3078500195520. Its totient is φ = 290594304000.

The previous prime is 1164186919927. The next prime is 1164186919957. The reversal of 1164186919950 is 599196814611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1164186919957) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 45214080 + ... + 45239820.

It is an arithmetic number, because the mean of its divisors is an integer number (16033855185).

Almost surely, 2^{1164186919950} is an apocalyptic number.

1164186919950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1164186919950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1539250097760).

1164186919950 is an abundant number, since it is smaller than the sum of its proper divisors (1914313275570).

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

1164186919950 is a wasteful number, since it uses less digits than its factorization.

1164186919950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26103 (or 26098 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 60.

The spelling of 1164186919950 in words is "one trillion, one hundred sixty-four billion, one hundred eighty-six million, nine hundred nineteen thousand, nine hundred fifty".