16890565498 has 16 divisors (see below), whose sum is σ = 25883544960. Its totient is φ = 8262837216.

The previous prime is 16890565423. The next prime is 16890565513. The reversal of 16890565498 is 89456509861.

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, 268918 + ... + 325726.

It is an arithmetic number, because the mean of its divisors is an integer number (1617721560).

Almost surely, 2^16890565498 is an apocalyptic number.

16890565498 is a deficient number, since it is larger than the sum of its proper divisors (8992979462).

16890565498 is a wasteful number, since it uses less digits than its factorization.

16890565498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60021.

The product of its (nonzero) digits is 18662400, while the sum is 61.

The spelling of 16890565498 in words is "sixteen billion, eight hundred ninety million, five hundred sixty-five thousand, four hundred ninety-eight".