1551255200000 has 432 divisors, whose sum is σ = 4242305975040. Its totient is φ = 561408000000.

The previous prime is 1551255199999. The next prime is 1551255200023. The reversal of 1551255200000 is 25521551.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3599199785 + ... + 3599200215.

It is an arithmetic number, because the mean of its divisors is an integer number (9820152720).

Almost surely, 2^{1551255200000} is an apocalyptic number.

1551255200000 is a gapful number since it is divisible by the number (10) 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 1551255200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2121152987520).

1551255200000 is an abundant number, since it is smaller than the sum of its proper divisors (2691050775040).

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

1551255200000 is an frugal number, since it uses more digits than its factorization.

1551255200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892 (or 858 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 26.

The spelling of 1551255200000 in words is "one trillion, five hundred fifty-one billion, two hundred fifty-five million, two hundred thousand".