803663204642 has 16 divisors (see below), whose sum is σ = 1248025208760. Its totient is φ = 387676171008.

The previous prime is 803663204633. The next prime is 803663204651. The reversal of 803663204642 is 246402366308.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (803663204633) and next prime (803663204651).

It can be written as a sum of positive squares in 4 ways, for example, as 800253695761 + 3409508881 = 894569^2 + 58391^2 .

It is a super-3 number, since 3×803663204642³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 803663204593 and 803663204602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5266433 + ... + 5416884.

Almost surely, 2^803663204642 is an apocalyptic number.

803663204642 is a deficient number, since it is larger than the sum of its proper divisors (444362004118).

803663204642 is a wasteful number, since it uses less digits than its factorization.

803663204642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10684645.

The product of its (nonzero) digits is 995328, while the sum is 44.

The spelling of 803663204642 in words is "eight hundred three billion, six hundred sixty-three million, two hundred four thousand, six hundred forty-two".