1255887445165 has 16 divisors (see below), whose sum is σ = 1530085854528. Its totient is φ = 989405490816.

The previous prime is 1255887445147. The next prime is 1255887445193. The reversal of 1255887445165 is 5615447885521.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1255887445165 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2440879 + ... + 2910268.

It is an arithmetic number, because the mean of its divisors is an integer number (95630365908).

Almost surely, 2^{1255887445165} is an apocalyptic number.

It is an amenable number.

1255887445165 is a deficient number, since it is larger than the sum of its proper divisors (274198409363).

1255887445165 is an equidigital number, since it uses as much as digits as its factorization.

1255887445165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5351868.

The product of its digits is 53760000, while the sum is 61.

The spelling of 1255887445165 in words is "one trillion, two hundred fifty-five billion, eight hundred eighty-seven million, four hundred forty-five thousand, one hundred sixty-five".