16628792678 has 16 divisors (see below), whose sum is σ = 26214935040. Its totient is φ = 7895682696.

The previous prime is 16628792659. The next prime is 16628792729. The reversal of 16628792678 is 87629782661.

It is a self number, because there is not a number n which added to its sum of digits gives 16628792678.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1293950 + ... + 1306737.

It is an arithmetic number, because the mean of its divisors is an integer number (1638433440).

Almost surely, 2^16628792678 is an apocalyptic number.

16628792678 is a deficient number, since it is larger than the sum of its proper divisors (9586142362).

16628792678 is a wasteful number, since it uses less digits than its factorization.

16628792678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2600851.

The product of its digits is 24385536, while the sum is 62.

The spelling of 16628792678 in words is "sixteen billion, six hundred twenty-eight million, seven hundred ninety-two thousand, six hundred seventy-eight".