1643263603132 has 12 divisors (see below), whose sum is σ = 2929970009736. Its totient is φ = 806129314640.

The previous prime is 1643263603123. The next prime is 1643263603151. The reversal of 1643263603132 is 2313063623461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3875621494 + ... + 3875621917.

It is an arithmetic number, because the mean of its divisors is an integer number (244164167478).

Almost surely, 2^{1643263603132} is an apocalyptic number.

It is an amenable number.

1643263603132 is a deficient number, since it is larger than the sum of its proper divisors (1286706406604).

1643263603132 is a wasteful number, since it uses less digits than its factorization.

1643263603132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7751243468 (or 7751243466 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 40.

The spelling of 1643263603132 in words is "one trillion, six hundred forty-three billion, two hundred sixty-three million, six hundred three thousand, one hundred thirty-two".