1255251126000 has 80 divisors (see below), whose sum is σ = 4046929649568. Its totient is φ = 334733632000.

The previous prime is 1255251125987. The next prime is 1255251126029. The reversal of 1255251126000 is 6211525521.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 104598261 + ... + 104610260.

Almost surely, 2^{1255251126000} is an apocalyptic number.

1255251126000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1255251126000 is an abundant number, since it is smaller than the sum of its proper divisors (2791678523568).

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

1255251126000 is a wasteful number, since it uses less digits than its factorization.

1255251126000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209208547 (or 209208531 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 30.

The spelling of 1255251126000 in words is "one trillion, two hundred fifty-five billion, two hundred fifty-one million, one hundred twenty-six thousand".