1345001506564 has 27 divisors (see below), whose sum is σ = 2360554968373. Its totient is φ = 670562824400.

The previous prime is 1345001506507. The next prime is 1345001506571. The reversal of 1345001506564 is 4656051005431.

It is a happy number.

The square root of 1345001506564 is 1159742.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1233525652164 + 111475854400 = 1110642^2 + 333880^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1138866054 + ... + 1138867234.

Almost surely, 2^{1345001506564} is an apocalyptic number.

1345001506564 is the 1159742-nd square number.

It is an amenable number.

1345001506564 is a deficient number, since it is larger than the sum of its proper divisors (1015553461809).

1345001506564 is an frugal number, since it uses more digits than its factorization.

1345001506564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3348 (or 1674 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 1345001506564 in words is "one trillion, three hundred forty-five billion, one million, five hundred six thousand, five hundred sixty-four".