1255416664 has 16 divisors (see below), whose sum is σ = 2360896200. Its totient is φ = 625844352.

The previous prime is 1255416653. The next prime is 1255416683. The reversal of 1255416664 is 4666145521.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230134 + ... + 235525.

Almost surely, 2^1255416664 is an apocalyptic number.

It is an amenable number.

1255416664 is a deficient number, since it is larger than the sum of its proper divisors (1105479536).

1255416664 is a wasteful number, since it uses less digits than its factorization.

1255416664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466002 (or 465998 counting only the distinct ones).

The product of its digits is 172800, while the sum is 40.

The square root of 1255416664 is about 35431.8594488068. The cubic root of 1255416664 is about 1078.7710827292.

The spelling of 1255416664 in words is "one billion, two hundred fifty-five million, four hundred sixteen thousand, six hundred sixty-four".