1306888664 has 16 divisors (see below), whose sum is σ = 2451463920. Its totient is φ = 653164960.

The previous prime is 1306888633. The next prime is 1306888673. The reversal of 1306888664 is 4668886031.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14327 + ... + 53094.

It is an arithmetic number, because the mean of its divisors is an integer number (153216495).

Almost surely, 2^1306888664 is an apocalyptic number.

It is an amenable number.

1306888664 is a deficient number, since it is larger than the sum of its proper divisors (1144575256).

1306888664 is a wasteful number, since it uses less digits than its factorization.

1306888664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69850 (or 69846 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 50.

The square root of 1306888664 is about 36150.9151198140. The cubic root of 1306888664 is about 1093.3172415670.

The spelling of 1306888664 in words is "one billion, three hundred six million, eight hundred eighty-eight thousand, six hundred sixty-four".