830803661568 has 90 divisors (see below), whose sum is σ = 2477306253884. Its totient is φ = 276934546944.

The previous prime is 830803661551. The next prime is 830803661593. The reversal of 830803661568 is 865166308038.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 20012146 + ... + 20053617.

Almost surely, 2^830803661568 is an apocalyptic number.

It is an amenable number.

830803661568 is an abundant number, since it is smaller than the sum of its proper divisors (1646502592316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

830803661568 is an equidigital number, since it uses as much as digits as its factorization.

830803661568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40065791 (or 40065768 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The spelling of 830803661568 in words is "eight hundred thirty billion, eight hundred three million, six hundred sixty-one thousand, five hundred sixty-eight".