1345066553 has 8 divisors (see below), whose sum is σ = 1358343360. Its totient is φ = 1331855280.

The previous prime is 1345066517. The next prime is 1345066577. The reversal of 1345066553 is 3556605431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1345066553 - 2¹⁰ = 1345065529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1345066153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25388 + ... + 57746.

It is an arithmetic number, because the mean of its divisors is an integer number (169792920).

Almost surely, 2^1345066553 is an apocalyptic number.

It is an amenable number.

1345066553 is a deficient number, since it is larger than the sum of its proper divisors (13276807).

1345066553 is a wasteful number, since it uses less digits than its factorization.

1345066553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32767.

The product of its (nonzero) digits is 162000, while the sum is 38.

The square root of 1345066553 is about 36675.1489840191. The cubic root of 1345066553 is about 1103.8615119050.

The spelling of 1345066553 in words is "one billion, three hundred forty-five million, sixty-six thousand, five hundred fifty-three".