1226600064 has 192 divisors, whose sum is σ = 3772204800. Its totient is φ = 391979520.

The previous prime is 1226600009. The next prime is 1226600077. The reversal of 1226600064 is 4600066221.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11463499 + ... + 11463605.

It is an arithmetic number, because the mean of its divisors is an integer number (19646900).

Almost surely, 2^1226600064 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 1226600064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1886102400).

1226600064 is an abundant number, since it is smaller than the sum of its proper divisors (2545604736).

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

1226600064 is an equidigital number, since it uses as much as digits as its factorization.

1226600064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 1226600064 is about 35022.8505978597. The cubic root of 1226600064 is about 1070.4531414024.

Adding to 1226600064 its reverse (4600066221), we get a palindrome (5826666285).

The spelling of 1226600064 in words is "one billion, two hundred twenty-six million, six hundred thousand, sixty-four".