1345265660400 has 60 divisors (see below), whose sum is σ = 4309334335992. Its totient is φ = 358737509120.

The previous prime is 1345265660369. The next prime is 1345265660503. The reversal of 1345265660400 is 40665625431.

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 560526159 + ... + 560528558.

Almost surely, 2^{1345265660400} is an apocalyptic number.

1345265660400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1345265660400 is an abundant number, since it is smaller than the sum of its proper divisors (2964068675592).

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

1345265660400 is a wasteful number, since it uses less digits than its factorization.

1345265660400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121054738 (or 1121054727 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 1345265660400 in words is "one trillion, three hundred forty-five billion, two hundred sixty-five million, six hundred sixty thousand, four hundred".