16417220500 has 48 divisors (see below), whose sum is σ = 36113313600. Its totient is φ = 6519616800.

The previous prime is 16417220489. The next prime is 16417220509. The reversal of 16417220500 is 502271461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16417220509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48610 + ... + 187609.

It is an arithmetic number, because the mean of its divisors is an integer number (752360700).

Almost surely, 2^16417220500 is an apocalyptic number.

16417220500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16417220500 is an abundant number, since it is smaller than the sum of its proper divisors (19696093100).

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

16417220500 is a wasteful number, since it uses less digits than its factorization.

16417220500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236377 (or 236365 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

Adding to 16417220500 its reverse (502271461), we get a palindrome (16919491961).

The spelling of 16417220500 in words is "sixteen billion, four hundred seventeen million, two hundred twenty thousand, five hundred".