1351064120561 has 16 divisors (see below), whose sum is σ = 1464932988288. Its totient is φ = 1241062368000.

The previous prime is 1351064120551. The next prime is 1351064120569. The reversal of 1351064120561 is 1650214601531.

It is a cyclic number.

It is not a de Polignac number, because 1351064120561 - 2¹⁴ = 1351064104177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1351064120569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 240716 + ... + 1661346.

It is an arithmetic number, because the mean of its divisors is an integer number (91558311768).

Almost surely, 2^{1351064120561} is an apocalyptic number.

It is an amenable number.

1351064120561 is a deficient number, since it is larger than the sum of its proper divisors (113868867727).

1351064120561 is a wasteful number, since it uses less digits than its factorization.

1351064120561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421992.

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 1351064120561 in words is "one trillion, three hundred fifty-one billion, sixty-four million, one hundred twenty thousand, five hundred sixty-one".