1355520130560 has 320 divisors, whose sum is σ = 4905781277760. Its totient is φ = 354650849280.

The previous prime is 1355520130519. The next prime is 1355520130561. The reversal of 1355520130560 is 650310255531.

1355520130560 is a `hidden beast` number, since 1 + 3 + 55 + 520 + 1 + 30 + 56 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1355520130561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3478350 + ... + 3848370.

It is an arithmetic number, because the mean of its divisors is an integer number (15330566493).

Almost surely, 2^{1355520130560} is an apocalyptic number.

1355520130560 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 1355520130560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2452890638880).

1355520130560 is an abundant number, since it is smaller than the sum of its proper divisors (3550261147200).

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

1355520130560 is an equidigital number, since it uses as much as digits as its factorization.

1355520130560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370106 (or 370084 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 36.

The spelling of 1355520130560 in words is "one trillion, three hundred fifty-five billion, five hundred twenty million, one hundred thirty thousand, five hundred sixty".