16999690496 has 36 divisors (see below), whose sum is σ = 35103093900. Its totient is φ = 8206743552.

The previous prime is 16999690459. The next prime is 16999690541. The reversal of 16999690496 is 69409699961.

It can be written as a sum of positive squares in 2 ways, for example, as 4669808896 + 12329881600 = 68336^2 + 111040^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1137491 + ... + 1152338.

Almost surely, 2^16999690496 is an apocalyptic number.

16999690496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16999690496 is an abundant number, since it is smaller than the sum of its proper divisors (18103403404).

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

16999690496 is an equidigital number, since it uses as much as digits as its factorization.

16999690496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2289874 (or 2289860 counting only the distinct ones).

The product of its (nonzero) digits is 51018336, while the sum is 68.

The spelling of 16999690496 in words is "sixteen billion, nine hundred ninety-nine million, six hundred ninety thousand, four hundred ninety-six".