1466560127561 has 4 divisors (see below), whose sum is σ = 1530323611392. Its totient is φ = 1402796643732.

The previous prime is 1466560127551. The next prime is 1466560127587. The reversal of 1466560127561 is 1657210656641.

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-1466560127561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1466560127551) 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, 31881741881 + ... + 31881741926.

It is an arithmetic number, because the mean of its divisors is an integer number (382580902848).

Almost surely, 2^{1466560127561} is an apocalyptic number.

It is an amenable number.

1466560127561 is a deficient number, since it is larger than the sum of its proper divisors (63763483831).

1466560127561 is an equidigital number, since it uses as much as digits as its factorization.

1466560127561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63763483830.

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 1466560127561 in words is "one trillion, four hundred sixty-six billion, five hundred sixty million, one hundred twenty-seven thousand, five hundred sixty-one".