1226000664 has 128 divisors (see below), whose sum is σ = 3965760000. Its totient is φ = 343654272.

The previous prime is 1226000663. The next prime is 1226000681. The reversal of 1226000664 is 4660006221.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226000663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72487 + ... + 87785.

It is an arithmetic number, because the mean of its divisors is an integer number (30982500).

Almost surely, 2^1226000664 is an apocalyptic number.

1226000664 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 1226000664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1982880000).

1226000664 is an abundant number, since it is smaller than the sum of its proper divisors (2739759336).

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

1226000664 is a wasteful number, since it uses less digits than its factorization.

1226000664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15374 (or 15364 counting only the distinct ones).

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

The square root of 1226000664 is about 35014.2922818668. The cubic root of 1226000664 is about 1070.2787476521.

Adding to 1226000664 its reverse (4660006221), we get a palindrome (5886006885).

The spelling of 1226000664 in words is "one billion, two hundred twenty-six million, six hundred sixty-four", and thus it is an aban number.