119775521664 has 160 divisors (see below), whose sum is σ = 364740904440. Its totient is φ = 38996536320.

The previous prime is 119775521647. The next prime is 119775521669. The reversal of 119775521664 is 466125577911.

119775521664 is a `hidden beast` number, since 1 + 1 + 9 + 77 + 552 + 16 + 6 + 4 = 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 119775521664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (119775521669) 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 19 ways as a sum of consecutive naturals, for example, 311494 + ... + 580154.

Almost surely, 2^119775521664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 119775521664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182370452220).

119775521664 is an abundant number, since it is smaller than the sum of its proper divisors (244965382776).

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

119775521664 is an equidigital number, since it uses as much as digits as its factorization.

119775521664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268730 (or 268709 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 54.

The spelling of 119775521664 in words is "one hundred nineteen billion, seven hundred seventy-five million, five hundred twenty-one thousand, six hundred sixty-four".