16545332100 has 72 divisors (see below), whose sum is σ = 52223095008. Its totient is φ = 4010988800.

The previous prime is 16545332099. The next prime is 16545332101. The reversal of 16545332100 is 123354561.

It is an interprime number because it is at equal distance from previous prime (16545332099) and next prime (16545332101).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (16545332101) 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, 2503569 + ... + 2510168.

It is an arithmetic number, because the mean of its divisors is an integer number (725320764).

Almost surely, 2^16545332100 is an apocalyptic number.

16545332100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16545332100 is an abundant number, since it is smaller than the sum of its proper divisors (35677762908).

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

16545332100 is a wasteful number, since it uses less digits than its factorization.

16545332100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5013765 (or 5013758 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 16545332100 its reverse (123354561), we get a palindrome (16668686661).

The spelling of 16545332100 in words is "sixteen billion, five hundred forty-five million, three hundred thirty-two thousand, one hundred".