1255152643584 has 160 divisors (see below), whose sum is σ = 3824973757440. Its totient is φ = 358288269312.

The previous prime is 1255152643583. The next prime is 1255152643601. The reversal of 1255152643584 is 4853462515521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255152643583) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11871337 + ... + 11976599.

It is an arithmetic number, because the mean of its divisors is an integer number (23906085984).

Almost surely, 2^{1255152643584} is an apocalyptic number.

1255152643584 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1255152643584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1912486878720).

1255152643584 is an abundant number, since it is smaller than the sum of its proper divisors (2569821113856).

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

1255152643584 is a wasteful number, since it uses less digits than its factorization.

1255152643584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106400 (or 106384 counting only the distinct ones).

The product of its digits is 5760000, while the sum is 51.

The spelling of 1255152643584 in words is "one trillion, two hundred fifty-five billion, one hundred fifty-two million, six hundred forty-three thousand, five hundred eighty-four".