1642303563446 has 48 divisors (see below), whose sum is σ = 3086444830896. Its totient is φ = 649627159104.

The previous prime is 1642303563419. The next prime is 1642303563479. The reversal of 1642303563446 is 6443653032461.

It is a self number, because there is not a number n which added to its sum of digits gives 1642303563446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11634080 + ... + 11774396.

It is an arithmetic number, because the mean of its divisors is an integer number (64300933977).

Almost surely, 2^{1642303563446} is an apocalyptic number.

1642303563446 is a deficient number, since it is larger than the sum of its proper divisors (1444141267450).

1642303563446 is a wasteful number, since it uses less digits than its factorization.

1642303563446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149533 (or 149526 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 47.

The spelling of 1642303563446 in words is "one trillion, six hundred forty-two billion, three hundred three million, five hundred sixty-three thousand, four hundred forty-six".