1255575564936 has 384 divisors, whose sum is σ = 4358132812800. Its totient is φ = 317022128640.

The previous prime is 1255575564883. The next prime is 1255575564967. The reversal of 1255575564936 is 6394655755521.

1255575564936 is a `hidden beast` number, since 1 + 2 + 5 + 5 + 5 + 7 + 556 + 49 + 36 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 312407935 + ... + 312411953.

It is an arithmetic number, because the mean of its divisors is an integer number (11349304200).

Almost surely, 2^{1255575564936} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1255575564936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2179066406400).

1255575564936 is an abundant number, since it is smaller than the sum of its proper divisors (3102557247864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1255575564936 is a wasteful number, since it uses less digits than its factorization.

1255575564936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5609 (or 5602 counting only the distinct ones).

The product of its digits is 170100000, while the sum is 63.

The spelling of 1255575564936 in words is "one trillion, two hundred fifty-five billion, five hundred seventy-five million, five hundred sixty-four thousand, nine hundred thirty-six".