16530319494 has 24 divisors (see below), whose sum is σ = 38570746032. Its totient is φ = 5086252080.

The previous prime is 16530319453. The next prime is 16530319499. The reversal of 16530319494 is 49491303561.

16530319494 is a `hidden beast` number, since 16 + 530 + 3 + 19 + 4 + 94 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16530319499) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35320962 + ... + 35321429.

It is an arithmetic number, because the mean of its divisors is an integer number (1607114418).

Almost surely, 2^16530319494 is an apocalyptic number.

16530319494 is an abundant number, since it is smaller than the sum of its proper divisors (22040426538).

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

16530319494 is a wasteful number, since it uses less digits than its factorization.

16530319494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70642412 (or 70642409 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The spelling of 16530319494 in words is "sixteen billion, five hundred thirty million, three hundred nineteen thousand, four hundred ninety-four".