1350441512561 has 32 divisors (see below), whose sum is σ = 1486517508000. Its totient is φ = 1221099651072.

The previous prime is 1350441512513. The next prime is 1350441512573. The reversal of 1350441512561 is 1652151440531.

It can be written as a sum of positive squares in 16 ways, for example, as 37343243536 + 1313098269025 = 193244^2 + 1145905^2 .

It is a cyclic number.

It is not a de Polignac number, because 1350441512561 - 2²² = 1350437318257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1350441512261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 327060545 + ... + 327064673.

It is an arithmetic number, because the mean of its divisors is an integer number (46453672125).

Almost surely, 2^{1350441512561} is an apocalyptic number.

It is an amenable number.

1350441512561 is a deficient number, since it is larger than the sum of its proper divisors (136075995439).

1350441512561 is a wasteful number, since it uses less digits than its factorization.

1350441512561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7301.

The product of its (nonzero) digits is 72000, while the sum is 38.

The spelling of 1350441512561 in words is "one trillion, three hundred fifty billion, four hundred forty-one million, five hundred twelve thousand, five hundred sixty-one".