1406120541646 has 16 divisors (see below), whose sum is σ = 2243002469040. Its totient is φ = 658814244480.

The previous prime is 1406120541613. The next prime is 1406120541673. The reversal of 1406120541646 is 6461450216041.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1406120541599 and 1406120541608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90290220 + ... + 90305791.

It is an arithmetic number, because the mean of its divisors is an integer number (140187654315).

Almost surely, 2^{1406120541646} is an apocalyptic number.

1406120541646 is a deficient number, since it is larger than the sum of its proper divisors (836881927394).

1406120541646 is a wasteful number, since it uses less digits than its factorization.

1406120541646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180596259.

The product of its (nonzero) digits is 138240, while the sum is 40.

Adding to 1406120541646 its reverse (6461450216041), we get a palindrome (7867570757687).

The spelling of 1406120541646 in words is "one trillion, four hundred six billion, one hundred twenty million, five hundred forty-one thousand, six hundred forty-six".