1362643320561 has 32 divisors (see below), whose sum is σ = 1956748421760. Its totient is φ = 841707707904.

The previous prime is 1362643320553. The next prime is 1362643320587. The reversal of 1362643320561 is 1650233462631.

It is not a de Polignac number, because 1362643320561 - 2³ = 1362643320553 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1362643320541) 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, 2664415 + ... + 3134388.

It is an arithmetic number, because the mean of its divisors is an integer number (61148388180).

Almost surely, 2^{1362643320561} is an apocalyptic number.

It is an amenable number.

1362643320561 is a deficient number, since it is larger than the sum of its proper divisors (594105101199).

1362643320561 is a wasteful number, since it uses less digits than its factorization.

1362643320561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5798945.

The product of its (nonzero) digits is 466560, while the sum is 42.

The spelling of 1362643320561 in words is "one trillion, three hundred sixty-two billion, six hundred forty-three million, three hundred twenty thousand, five hundred sixty-one".