1255661315224 has 8 divisors (see below), whose sum is σ = 2354364966060. Its totient is φ = 627830657608.

The previous prime is 1255661315197. The next prime is 1255661315231. The reversal of 1255661315224 is 4225131665521.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78478832194 + ... + 78478832209.

Almost surely, 2^{1255661315224} is an apocalyptic number.

It is an amenable number.

1255661315224 is a deficient number, since it is larger than the sum of its proper divisors (1098703650836).

1255661315224 is a wasteful number, since it uses less digits than its factorization.

1255661315224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156957664409 (or 156957664405 counting only the distinct ones).

The product of its digits is 432000, while the sum is 43.

The spelling of 1255661315224 in words is "one trillion, two hundred fifty-five billion, six hundred sixty-one million, three hundred fifteen thousand, two hundred twenty-four".