1255663098611 has 4 divisors (see below), whose sum is σ = 1289599939152. Its totient is φ = 1221726258072.

The previous prime is 1255663098589. The next prime is 1255663098617. The reversal of 1255663098611 is 1168903665521.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1255663098611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1255663098617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16968420215 + ... + 16968420288.

It is an arithmetic number, because the mean of its divisors is an integer number (322399984788).

Almost surely, 2^{1255663098611} is an apocalyptic number.

1255663098611 is a deficient number, since it is larger than the sum of its proper divisors (33936840541).

1255663098611 is an equidigital number, since it uses as much as digits as its factorization.

1255663098611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33936840540.

The product of its (nonzero) digits is 2332800, while the sum is 53.

The spelling of 1255663098611 in words is "one trillion, two hundred fifty-five billion, six hundred sixty-three million, ninety-eight thousand, six hundred eleven".