1351055725056 has 160 divisors (see below), whose sum is σ = 4054005616320. Its totient is φ = 444182372352.

The previous prime is 1351055725039. The next prime is 1351055725081. The reversal of 1351055725056 is 6505275501531.

1351055725056 is a `hidden beast` number, since 1 + 35 + 10 + 557 + 2 + 5 + 0 + 56 = 666.

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, 339751 + ... + 1678553.

It is an arithmetic number, because the mean of its divisors is an integer number (25337535102).

Almost surely, 2^{1351055725056} is an apocalyptic number.

1351055725056 is a gapful number since it is divisible by the number (16) 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 1351055725056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2027002808160).

1351055725056 is an abundant number, since it is smaller than the sum of its proper divisors (2702949891264).

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

1351055725056 is an equidigital number, since it uses as much as digits as its factorization.

1351055725056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338903 (or 1338881 counting only the distinct ones).

The product of its (nonzero) digits is 787500, while the sum is 45.

The spelling of 1351055725056 in words is "one trillion, three hundred fifty-one billion, fifty-five million, seven hundred twenty-five thousand, fifty-six".