1266053330 has 32 divisors (see below), whose sum is σ = 2354780160. Its totient is φ = 489591360.

The previous prime is 1266053317. The next prime is 1266053339. The reversal of 1266053330 is 333506621.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1266053293 and 1266053302.

It is not an unprimeable number, because it can be changed into a prime (1266053339) 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, 516167 + ... + 518613.

It is an arithmetic number, because the mean of its divisors is an integer number (73586880).

Almost surely, 2^1266053330 is an apocalyptic number.

1266053330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1266053330 is a deficient number, since it is larger than the sum of its proper divisors (1088726830).

1266053330 is a wasteful number, since it uses less digits than its factorization.

1266053330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4154.

The product of its (nonzero) digits is 9720, while the sum is 29.

The square root of 1266053330 is about 35581.6431604837. The cubic root of 1266053330 is about 1081.8091903886.

Adding to 1266053330 its reverse (333506621), we get a palindrome (1599559951).

The spelling of 1266053330 in words is "one billion, two hundred sixty-six million, fifty-three thousand, three hundred thirty".