16650486819 has 32 divisors (see below), whose sum is σ = 25619328000. Its totient is φ = 10679961312.

The previous prime is 16650486779. The next prime is 16650486859. The reversal of 16650486819 is 91868405661.

16650486819 is a `hidden beast` number, since 1 + 66 + 504 + 8 + 68 + 19 = 666.

It is an interprime number because it is at equal distance from previous prime (16650486779) and next prime (16650486859).

It is not a de Polignac number, because 16650486819 - 2⁸ = 16650486563 is a prime.

It is a super-2 number, since 2×16650486819² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (16650486859) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36324 + ... + 186065.

It is an arithmetic number, because the mean of its divisors is an integer number (800604000).

Almost surely, 2^16650486819 is an apocalyptic number.

16650486819 is a deficient number, since it is larger than the sum of its proper divisors (8968841181).

16650486819 is a wasteful number, since it uses less digits than its factorization.

16650486819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222504 (or 222498 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The spelling of 16650486819 in words is "sixteen billion, six hundred fifty million, four hundred eighty-six thousand, eight hundred nineteen".