16501379000 has 64 divisors (see below), whose sum is σ = 39511311840. Its totient is φ = 6447033600.

The previous prime is 16501378981. The next prime is 16501379033. The reversal of 16501379000 is 97310561.

It is a congruent number.

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, 148877 + ... + 234876.

Almost surely, 2^16501379000 is an apocalyptic number.

16501379000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16501379000 is an abundant number, since it is smaller than the sum of its proper divisors (23009932840).

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

16501379000 is a wasteful number, since it uses less digits than its factorization.

16501379000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383817 (or 383803 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 32.

Adding to 16501379000 its reverse (97310561), we get a palindrome (16598689561).

The spelling of 16501379000 in words is "sixteen billion, five hundred one million, three hundred seventy-nine thousand".