1264600116 has 72 divisors (see below), whose sum is σ = 3468969504. Its totient is φ = 386118720.

The previous prime is 1264600109. The next prime is 1264600153. The reversal of 1264600116 is 6110064621.

1264600116 is a `hidden beast` number, since 1 + 2 + 646 + 0 + 0 + 1 + 16 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1264600116.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 50995 + ... + 71621.

It is an arithmetic number, because the mean of its divisors is an integer number (48180132).

Almost surely, 2^1264600116 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 1264600116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1734484752).

1264600116 is an abundant number, since it is smaller than the sum of its proper divisors (2204369388).

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

1264600116 is a wasteful number, since it uses less digits than its factorization.

1264600116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20781 (or 20776 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1264600116 is about 35561.2164583834. The cubic root of 1264600116 is about 1081.3951209050.

Adding to 1264600116 its reverse (6110064621), we get a palindrome (7374664737).

The spelling of 1264600116 in words is "one billion, two hundred sixty-four million, six hundred thousand, one hundred sixteen".