1351050555520 has 64 divisors (see below), whose sum is σ = 3230825356800. Its totient is φ = 540257901568.

The previous prime is 1351050555511. The next prime is 1351050555541. The reversal of 1351050555520 is 255550501531.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 1351050555520.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1826721 + ... + 2457439.

It is an arithmetic number, because the mean of its divisors is an integer number (50481646200).

Almost surely, 2^{1351050555520} is an apocalyptic number.

1351050555520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1351050555520 is an abundant number, since it is smaller than the sum of its proper divisors (1879774801280).

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

1351050555520 is an equidigital number, since it uses as much as digits as its factorization.

1351050555520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634085 (or 634073 counting only the distinct ones).

The product of its (nonzero) digits is 93750, while the sum is 37.

The spelling of 1351050555520 in words is "one trillion, three hundred fifty-one billion, fifty million, five hundred fifty-five thousand, five hundred twenty".