816430061677 has 8 divisors (see below), whose sum is σ = 816825944000. Its totient is φ = 816034280544.

The previous prime is 816430061651. The next prime is 816430061743. The reversal of 816430061677 is 776160034618.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 816430061677 - 2⁷ = 816430061549 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 816430061677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816430061647) by changing a digit.

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, 19633774 + ... + 19675312.

It is an arithmetic number, because the mean of its divisors is an integer number (102103243000).

Almost surely, 2^816430061677 is an apocalyptic number.

It is an amenable number.

816430061677 is a deficient number, since it is larger than the sum of its proper divisors (395882323).

816430061677 is a wasteful number, since it uses less digits than its factorization.

816430061677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50595.

The product of its (nonzero) digits is 1016064, while the sum is 49.

The spelling of 816430061677 in words is "eight hundred sixteen billion, four hundred thirty million, sixty-one thousand, six hundred seventy-seven".