1636406743061 has 8 divisors (see below), whose sum is σ = 1661261211648. Its totient is φ = 1611721930000.

The previous prime is 1636406743001. The next prime is 1636406743093. The reversal of 1636406743061 is 1603476046361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1636406743061 - 2²² = 1636402548757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1636406742997 and 1636406743015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1636406743001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42394445 + ... + 42433026.

It is an arithmetic number, because the mean of its divisors is an integer number (207657651456).

Almost surely, 2^{1636406743061} is an apocalyptic number.

It is an amenable number.

1636406743061 is a deficient number, since it is larger than the sum of its proper divisors (24854468587).

1636406743061 is a wasteful number, since it uses less digits than its factorization.

1636406743061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84827763.

The product of its (nonzero) digits is 1306368, while the sum is 47.

The spelling of 1636406743061 in words is "one trillion, six hundred thirty-six billion, four hundred six million, seven hundred forty-three thousand, sixty-one".