16501655000 has 40 divisors (see below), whose sum is σ = 38663389380. Its totient is φ = 6600660000.

The previous prime is 16501654987. The next prime is 16501655039. The reversal of 16501655000 is 55610561.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1645166 + ... + 1655165.

Almost surely, 2^16501655000 is an apocalyptic number.

16501655000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16501655000 is an abundant number, since it is smaller than the sum of its proper divisors (22161734380).

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

16501655000 is an equidigital number, since it uses as much as digits as its factorization.

16501655000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3300357 (or 3300338 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 29.

The spelling of 16501655000 in words is "sixteen billion, five hundred one million, six hundred fifty-five thousand".