1066597348644 has 27 divisors (see below), whose sum is σ = 2696136739387. Its totient is φ = 355530384024.

The previous prime is 1066597348591. The next prime is 1066597348667. The reversal of 1066597348644 is 4468437956601.

The square root of 1066597348644 is 1032762.

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

1066597348644 is a `hidden beast` number, since 1 + 0 + 6 + 6 + 597 + 34 + 8 + 6 + 4 + 4 = 666.

It is a super-2 number, since 2×1066597348644² (a number of 25 digits) contains 22 as substring.

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, 6110509 + ... + 6282635.

Almost surely, 2^{1066597348644} is an apocalyptic number.

1066597348644 is the 1032762-nd square number.

It is an amenable number.

1066597348644 is an abundant number, since it is smaller than the sum of its proper divisors (1629539390743).

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

1066597348644 is an frugal number, since it uses more digits than its factorization.

1066597348644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344264 (or 172132 counting only the distinct ones).

The product of its (nonzero) digits is 104509440, while the sum is 63.

The spelling of 1066597348644 in words is "one trillion, sixty-six billion, five hundred ninety-seven million, three hundred forty-eight thousand, six hundred forty-four".