1168220064 has 96 divisors (see below), whose sum is σ = 3408640704. Its totient is φ = 347310080.

The previous prime is 1168220057. The next prime is 1168220069. The reversal of 1168220064 is 4600228611.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (1168220069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45532 + ... + 66404.

It is an arithmetic number, because the mean of its divisors is an integer number (35506674).

Almost surely, 2^1168220064 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 1168220064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1704320352).

1168220064 is an abundant number, since it is smaller than the sum of its proper divisors (2240420640).

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

1168220064 is a wasteful number, since it uses less digits than its factorization.

1168220064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20950 (or 20942 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 1168220064 is about 34179.2343975110. The cubic root of 1168220064 is about 1053.1936217340.

Adding to 1168220064 its reverse (4600228611), we get a palindrome (5768448675).

The spelling of 1168220064 in words is "one billion, one hundred sixty-eight million, two hundred twenty thousand, sixty-four".