1345061661522 has 16 divisors (see below), whose sum is σ = 2690749421472. Its totient is φ = 448249537440.

The previous prime is 1345061661509. The next prime is 1345061661533. The reversal of 1345061661522 is 2251661605431.

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, 26059504 + ... + 26111067.

It is an arithmetic number, because the mean of its divisors is an integer number (168171838842).

Almost surely, 2^{1345061661522} is an apocalyptic number.

1345061661522 is an abundant number, since it is smaller than the sum of its proper divisors (1345687759950).

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

1345061661522 is a wasteful number, since it uses less digits than its factorization.

1345061661522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52174873.

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 1345061661522 in words is "one trillion, three hundred forty-five billion, sixty-one million, six hundred sixty-one thousand, five hundred twenty-two".