16599790026 has 32 divisors (see below), whose sum is σ = 36965491200. Its totient is φ = 5521703040.

The previous prime is 16599790019. The next prime is 16599790027. The reversal of 16599790026 is 62009799561.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16599790027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 295015 + ... + 346746.

It is an arithmetic number, because the mean of its divisors is an integer number (1155171600).

Almost surely, 2^16599790026 is an apocalyptic number.

16599790026 is an abundant number, since it is smaller than the sum of its proper divisors (20365701174).

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

16599790026 is a wasteful number, since it uses less digits than its factorization.

16599790026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642251 (or 642245 counting only the distinct ones).

The product of its (nonzero) digits is 1837080, while the sum is 54.

The spelling of 16599790026 in words is "sixteen billion, five hundred ninety-nine million, seven hundred ninety thousand, twenty-six".