16653426100 has 72 divisors (see below), whose sum is σ = 38478162240. Its totient is φ = 6234385920.

The previous prime is 16653426029. The next prime is 16653426103. The reversal of 16653426100 is 162435661.

It is a super-2 number, since 2×16653426100² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16653426103) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 276937 + ... + 331663.

It is an arithmetic number, because the mean of its divisors is an integer number (534418920).

Almost surely, 2^16653426100 is an apocalyptic number.

16653426100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16653426100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19239081120).

16653426100 is an abundant number, since it is smaller than the sum of its proper divisors (21824736140).

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

16653426100 is a wasteful number, since it uses less digits than its factorization.

16653426100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54937 (or 54930 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 16653426100 in words is "sixteen billion, six hundred fifty-three million, four hundred twenty-six thousand, one hundred".