1466063277721 has 9 divisors (see below), whose sum is σ = 1705430407071. Its totient is φ = 1256618401752.

The previous prime is 1466063277713. The next prime is 1466063277751. The reversal of 1466063277721 is 1277723606641.

The square root of 1466063277721 is 1210811.

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., 62397542025 + 1403665735696 = 249795^2 + 1184764^2 .

It is not a de Polignac number, because 1466063277721 - 2³ = 1466063277713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1466063277751) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8389191 + ... + 8562163.

Almost surely, 2^{1466063277721} is an apocalyptic number.

1466063277721 is the 1210811-st square number.

1466063277721 is the 605406-th centered octagonal number.

It is an amenable number.

1466063277721 is a deficient number, since it is larger than the sum of its proper divisors (239367129350).

1466063277721 is an frugal number, since it uses more digits than its factorization.

1466063277721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345960 (or 172980 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 52.

The spelling of 1466063277721 in words is "one trillion, four hundred sixty-six billion, sixty-three million, two hundred seventy-seven thousand, seven hundred twenty-one".