16494617078 has 32 divisors (see below), whose sum is σ = 25479543936. Its totient is φ = 8004080448.

The previous prime is 16494616991. The next prime is 16494617093. The reversal of 16494617078 is 87071649461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11121725 + ... + 11123207.

It is an arithmetic number, because the mean of its divisors is an integer number (796235748).

Almost surely, 2^16494617078 is an apocalyptic number.

16494617078 is a deficient number, since it is larger than the sum of its proper divisors (8984926858).

16494617078 is a wasteful number, since it uses less digits than its factorization.

16494617078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2268.

The product of its (nonzero) digits is 2032128, while the sum is 53.

The spelling of 16494617078 in words is "sixteen billion, four hundred ninety-four million, six hundred seventeen thousand, seventy-eight".