1255416663 has 8 divisors (see below), whose sum is σ = 1772353008. Its totient is φ = 787712384.

The previous prime is 1255416653. The next prime is 1255416683. The reversal of 1255416663 is 3666145521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1255416663 - 2¹⁶ = 1255351127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255416653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12307956 + ... + 12308057.

It is an arithmetic number, because the mean of its divisors is an integer number (221544126).

Almost surely, 2^1255416663 is an apocalyptic number.

1255416663 is a deficient number, since it is larger than the sum of its proper divisors (516936345).

1255416663 is a wasteful number, since it uses less digits than its factorization.

1255416663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24616033.

The product of its digits is 129600, while the sum is 39.

The square root of 1255416663 is about 35431.8594346952. The cubic root of 1255416663 is about 1078.7710824427.

The spelling of 1255416663 in words is "one billion, two hundred fifty-five million, four hundred sixteen thousand, six hundred sixty-three".