4999646667456 has 168 divisors, whose sum is σ = 16388023591680. Its totient is φ = 1427579721216.

The previous prime is 4999646667443. The next prime is 4999646667469. The reversal of 4999646667456 is 6547666469994.

It is an interprime number because it is at equal distance from previous prime (4999646667443) and next prime (4999646667469).

It is a tau number, because it is divible by the number of its divisors (168).

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, 6093615 + ... + 6865233.

Almost surely, 2^{4999646667456} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4999646667456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8194011795840).

4999646667456 is an abundant number, since it is smaller than the sum of its proper divisors (11388376924224).

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

4999646667456 is a wasteful number, since it uses less digits than its factorization.

4999646667456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773251 (or 773238 counting only the distinct ones).

The product of its digits is 12697896960, while the sum is 81.

The spelling of 4999646667456 in words is "four trillion, nine hundred ninety-nine billion, six hundred forty-six million, six hundred sixty-seven thousand, four hundred fifty-six".