1466955521 has 4 divisors (see below), whose sum is σ = 1467351600. Its totient is φ = 1466559444.

The previous prime is 1466955509. The next prime is 1466955601. The reversal of 1466955521 is 1255596641.

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 a de Polignac number, because none of the positive numbers 2^k-1466955521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1466955421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192431 + ... + 199908.

It is an arithmetic number, because the mean of its divisors is an integer number (366837900).

Almost surely, 2^1466955521 is an apocalyptic number.

It is an amenable number.

1466955521 is a deficient number, since it is larger than the sum of its proper divisors (396079).

1466955521 is an equidigital number, since it uses as much as digits as its factorization.

1466955521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396078.

The product of its digits is 324000, while the sum is 44.

The square root of 1466955521 is about 38300.8553559839. The cubic root of 1466955521 is about 1136.2458638577.

The spelling of 1466955521 in words is "one billion, four hundred sixty-six million, nine hundred fifty-five thousand, five hundred twenty-one".