1255020863966 has 8 divisors (see below), whose sum is σ = 1890751957320. Its totient is φ = 624770211528.

The previous prime is 1255020863947. The next prime is 1255020864037. The reversal of 1255020863966 is 6693680205521.

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

It is a Curzon 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, 1370109656 + ... + 1370110571.

It is an arithmetic number, because the mean of its divisors is an integer number (236343994665).

Almost surely, 2^{1255020863966} is an apocalyptic number.

1255020863966 is a deficient number, since it is larger than the sum of its proper divisors (635731093354).

1255020863966 is a wasteful number, since it uses less digits than its factorization.

1255020863966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2740220458.

The product of its (nonzero) digits is 4665600, while the sum is 53.

The spelling of 1255020863966 in words is "one trillion, two hundred fifty-five billion, twenty million, eight hundred sixty-three thousand, nine hundred sixty-six".