16857849496 has 32 divisors (see below), whose sum is σ = 32221618560. Its totient is φ = 8265583872.

The previous prime is 16857849493. The next prime is 16857849499. The reversal of 16857849496 is 69494875861.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (16857849493) and next prime (16857849499).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16857849493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 899356 + ... + 917908.

It is an arithmetic number, because the mean of its divisors is an integer number (1006925580).

Almost surely, 2^16857849496 is an apocalyptic number.

It is an amenable number.

16857849496 is a deficient number, since it is larger than the sum of its proper divisors (15363769064).

16857849496 is a wasteful number, since it uses less digits than its factorization.

16857849496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20755 (or 20751 counting only the distinct ones).

The product of its digits is 104509440, while the sum is 67.

The spelling of 16857849496 in words is "sixteen billion, eight hundred fifty-seven million, eight hundred forty-nine thousand, four hundred ninety-six".