1345610545520 has 80 divisors (see below), whose sum is σ = 3182106332160. Its totient is φ = 529089330432.

The previous prime is 1345610545493. The next prime is 1345610545549. The reversal of 1345610545520 is 255450165431.

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

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, 965669 + ... + 1903611.

It is an arithmetic number, because the mean of its divisors is an integer number (39776329152).

Almost surely, 2^{1345610545520} is an apocalyptic number.

1345610545520 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 1345610545520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1591053166080).

1345610545520 is an abundant number, since it is smaller than the sum of its proper divisors (1836495786640).

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

1345610545520 is a wasteful number, since it uses less digits than its factorization.

1345610545520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938262 (or 938256 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 41.

The spelling of 1345610545520 in words is "one trillion, three hundred forty-five billion, six hundred ten million, five hundred forty-five thousand, five hundred twenty".