16290321938 has 32 divisors (see below), whose sum is σ = 27109479168. Its totient is φ = 7279113600.

The previous prime is 16290321923. The next prime is 16290321947. The reversal of 16290321938 is 83912309261.

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, 4369031 + ... + 4372757.

It is an arithmetic number, because the mean of its divisors is an integer number (847171224).

Almost surely, 2^16290321938 is an apocalyptic number.

16290321938 is a deficient number, since it is larger than the sum of its proper divisors (10819157230).

16290321938 is a wasteful number, since it uses less digits than its factorization.

16290321938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7058.

The product of its (nonzero) digits is 139968, while the sum is 44.

The spelling of 16290321938 in words is "sixteen billion, two hundred ninety million, three hundred twenty-one thousand, nine hundred thirty-eight".