1466995226721 has 4 divisors (see below), whose sum is σ = 1955993635632. Its totient is φ = 977996817812.

The previous prime is 1466995226699. The next prime is 1466995226737. The reversal of 1466995226721 is 1276225996641.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1466995226721 - 2¹³ = 1466995218529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1466995226771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244499204451 + ... + 244499204456.

It is an arithmetic number, because the mean of its divisors is an integer number (488998408908).

Almost surely, 2^{1466995226721} is an apocalyptic number.

It is an amenable number.

1466995226721 is a deficient number, since it is larger than the sum of its proper divisors (488998408911).

1466995226721 is an equidigital number, since it uses as much as digits as its factorization.

1466995226721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488998408910.

The product of its digits is 19595520, while the sum is 60.

The spelling of 1466995226721 in words is "one trillion, four hundred sixty-six billion, nine hundred ninety-five million, two hundred twenty-six thousand, seven hundred twenty-one".